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Flashcards in List-43 Deck (79):


adj. 空中的,航空的;空气的;空想的
n. [电讯] 天线

  1. a pass to a receiver downfield from the passer
  2. an electrical device that sends or receives radio or television signals
  3. in or belonging to the air or operating (for or by means of aircraft or elevated cables) in the air
  4. growing in air
  5. characterized by lightness and insubstantiality; as impalpable or intangible as air



    vt. 附加;获得;并吞
    n. 附加物;附属建筑物

    1. an addition that extends a main building
    2. take (territory) as if by conquest
    3. attach to



      n. 助手,助理,助教
      adj. 辅助的,助理的;有帮助的

      1. a person who contributes to the fulfillment of a need or furtherance of an effort or purpose
      2. of or relating to a person who is subordinate to another



        adj. 空的;赤裸的,无遮蔽的
        vt. 露出,使赤裸
        n. (Bare)人名;(英)贝尔

        1. lay bare
        2. make public
        3. lay bare
        4. completely unclothed
        5. lacking in amplitude or quantity



          n. [电] 电池,蓄电池

          1. group of guns or missile launchers operated together at one place
          2. a device that produces electricity; may have several primary or secondary cells arranged in parallel or series
          3. a collection of related things intended for use together
          4. a unit composed of the pitcher and catcher
          5. a series of stamps operated in one mortar for crushing ores



            n. 海滩;湖滨
            vt. 将…拖上岸
            vi. 搁浅;定居
            n. (Beach)人名;(英)比奇

            1. an area of sand sloping down to the water of a sea or lake
            2. land on a beach



              vi. 表现;(机器等)运转;举止端正;(事物)起某种作用
              vt. 使守规矩;使表现得…

              1. behave in a certain manner; show a certain behavior; conduct or comport oneself
              2. behave in a certain manner
              3. behave well or properly



                n. 毛毯,毯子;毯状物,覆盖层
                adj. 总括的,全体的;没有限制的
                vt. 覆盖,掩盖;用毯覆盖

                1. bedding that keeps a person warm in bed
                2. anything that covers
                3. a layer of lead surrounding the highly reactive core of a nuclear reactor
                4. cover as if with a blanket
                5. form a blanket-like cover (over)



                  n. 群;串;突出物
                  vi. 隆起;打褶;形成一串
                  vt. 使成一串;使打褶
                  n. (Bunch)人名;(英)邦奇

                  1. a grouping of a number of similar things
                  2. an informal body of friends
                  3. any collection in its entirety
                  4. form into a bunch
                  5. gather or cause to gather into a cluster



                    n. 灌木;矮树丛
                    vt. 以灌木装饰;使…精疲力竭
                    vi. 丛生;浓密地生长
                    adj. 如灌木般长得低矮的;粗野的

                    1. a low woody perennial plant usually having several major branches
                    2. a large wilderness area
                    3. dense vegetation consisting of stunted trees or bushes
                    4. 43rd President of the United States; son of George Herbert Walker Bush (born in 1946)
                    5. United States electrical engineer who designed an early analogue computer and who led the scientific program of the United States during World War II (1890-1974)



                      n. 盒式磁带;暗盒;珠宝箱;片匣

                      1. a container that holds a magnetic tape used for recording or playing sound or video



                        vt. 引用;传讯;想起;表彰

                        1. a short note recognizing a source of information or of a quoted passage
                        2. make reference to
                        3. commend
                        4. refer to
                        5. repeat a passage from



                          vt. 澄清;阐明
                          vi. 得到澄清;变得明晰;得到净化

                          1. make clear and (more) comprehensible
                          2. make clear by removing impurities or solids, as by heating



                            adj. 混凝土的;实在的,具体的;有形的
                            vi. 凝结
                            vt. 使凝固;用混凝土修筑
                            n. 具体物;凝结物

                            1. a strong hard building material composed of sand and gravel and cement and water
                            2. cover with cement
                            3. form into a solid mass; coalesce
                            4. capable of being perceived by the senses; not abstract or imaginary
                            5. formed by the coalescence of particles



                              n. 忏悔,告解;供认

                              1. an admission of misdeeds or faults
                              2. a written document acknowledging an offense and signed by the guilty party
                              3. (Roman Catholic Church) the act of a penitent disclosing his sinfulness before a priest in the sacrament of penance in the hope of absolution
                              4. a public declaration of your faith
                              5. a document that spells out the belief system of a given church (especially the Reformation churches of the 16th century)



                                adv. 自觉地;有意识地

                                1. with awareness



                                  vi. 由…组成;在于;符合

                                  1. originate (in)
                                  2. have its essential character; be comprised or contained in; be embodied in
                                  3. be consistent in form, tenor, or character; be congruous
                                  4. be composed of



                                    adj. 宇宙的(等于cosmical)

                                    1. of or from or pertaining to or characteristic of the cosmos or universe
                                    2. inconceivably extended in space or time



                                      n. 十字形;矛盾
                                      adj. 十字形的;交叉的
                                      vt. 画十字形于…;使…交叉成十字状
                                      vi. 交叉;交叉往来
                                      adv. 十字形地;十字交叉地

                                      1. a marking that consists of lines that cross each other
                                      2. cross in a pattern, often random
                                      3. mark with or consist of a pattern of crossed lines
                                      4. mark with a pattern of crossing lines
                                      5. marked with crossing lines



                                        vt. 使潮湿;使阻尼;使沮丧,抑制
                                        vi. 减幅,阻尼;变潮湿
                                        n. 潮湿,湿气
                                        adj. 潮湿的

                                        1. a slight wetness
                                        2. deaden (a sound or noise), especially by wrapping
                                        3. restrain or discourage
                                        4. make vague or obscure or make (an image) less visible
                                        5. lessen in force or effect



                                          n. 限定词
                                          adj. 决定性的;最后的;限定的

                                          1. clearly defined or formulated
                                          2. of recognized authority or excellence
                                          3. supplying or being a final or conclusive settlement



                                            vt. 交付;发表;递送;释放;给予(打击);给…接生
                                            vi. 实现;传送;履行;投递
                                            n. 投球

                                            1. deliver (a speech, oration, or idea)
                                            2. bring to a destination, make a delivery
                                            3. to surrender someone or something to another
                                            4. free from harm or evil
                                            5. hand over to the authorities of another country



                                              adj. 描写的,叙述的;描写性的

                                              1. serving to describe or inform or characterized by description
                                              2. concerned with phenomena (especially language) at a particular period without considering historical antecedents
                                              3. describing the structure of a language



                                                vi. 潜水;跳水;俯冲;急剧下降
                                                n. 潜水;跳水;俯冲;扑
                                                n. (Dive)人名;(法)迪夫

                                                1. a cheap disreputable nightclub or dance hall
                                                2. a headlong plunge into water
                                                3. a steep nose-down descent by an aircraft
                                                4. drop steeply
                                                5. plunge into water



                                                  vt. 提高;加强;增加

                                                  1. increase
                                                  2. make better or more attractive



                                                    n. 热心,热忱,热情

                                                    1. a feeling of excitement
                                                    2. overflowing with eager enjoyment or approval
                                                    3. a lively interest



                                                      n. 演变;进化论;进展

                                                      1. a process in which something passes by degrees to a different stage (especially a more advanced or mature stage)
                                                      2. (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms



                                                        n. 远征;探险队;迅速

                                                        1. a military campaign designed to achieve a specific objective in a foreign country
                                                        2. an organized group of people undertaking a journey for a particular purpose
                                                        3. a journey organized for a particular purpose
                                                        4. a journey taken for pleasure
                                                        5. the property of being prompt and efficient



                                                          adj. 面部的,表面的;脸的,面部用的
                                                          n. 美容,美颜;脸部按摩

                                                          1. cranial nerve that supplies facial muscles
                                                          2. care for the face that usually involves cleansing and massage and the application of cosmetic creams
                                                          3. of or concerning the face
                                                          4. of or pertaining to the outside surface of an object



                                                            n. 故障;[地质] 断层;错误;缺点;毛病;(网球等)发球失误
                                                            vi. 弄错;产生断层
                                                            vt. (通常用于疑问句或否定句)挑剔

                                                            1. responsibility for a bad situation or event
                                                            2. (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other
                                                            3. the quality of being inadequate or falling short of perfection
                                                            4. a wrong action attributable to bad judgment or ignorance or inattention
                                                            5. an imperfection in a device or machine



                                                              n. 群;棉束(等于floc)
                                                              vt. 用棉束填满
                                                              vi. 聚集;成群而行
                                                              n. (Flock)人名;(德、瑞典)弗洛克

                                                              1. a church congregation guided by a pastor
                                                              2. a group of birds
                                                              3. (often followed by `of') a large number or amount or extent
                                                              4. an orderly crowd
                                                              5. a group of sheep or goats



                                                                n. 框架;结构;[电影] 画面
                                                                vt. 设计;建造;陷害;使…适合
                                                                vi. 有成功希望
                                                                adj. 有木架的;有构架的
                                                                n. (Frame)人名;(英)弗雷姆

                                                                1. a structure supporting or containing something
                                                                2. one of a series of still transparent photographs on a strip of film used in making movies
                                                                3. alternative names for the body of a human being
                                                                4. a period of play in baseball during which each team has a turn at bat
                                                                5. the hard structure (bones and cartilages) that provides a frame for the body of an animal



                                                                  n. 宝石,珍宝; 精华;受人重视者
                                                                  vi. 点缀; 用宝石装饰; 饰以宝石
                                                                  adj. 最佳品质的
                                                                  n. (Gem)人名;(英)杰姆

                                                                  1. a crystalline rock that can be cut and polished for jewelry
                                                                  2. art highly prized for its beauty or perfection
                                                                  3. a person who is a brilliant and precious as a piece of jewelry
                                                                  4. a sweet quick bread baked in a cup-shaped pan
                                                                  5. a precious or semiprecious stone incorporated into a piece of jewelry



                                                                    n. [机] 研磨机;研磨者;磨工;臼齿
                                                                    n. (Grinder)人名;(瑞典)格林德

                                                                    1. a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States
                                                                    2. grinding tooth with a broad crown; located behind the premolars
                                                                    3. machinery that processes materials by grinding or crushing
                                                                    4. a machine tool that polishes metal



                                                                      vt. 粘合;似胶般固着于
                                                                      n. 胶;各种胶合物

                                                                      1. cement consisting of a sticky substance that is used as an adhesive
                                                                      2. join or attach with or as if with glue
                                                                      3. be fixed as if by glue



                                                                        n. 象形文字;图画文字;秘密符号

                                                                        1. writing that resembles hieroglyphics (usually by being illegible)
                                                                        2. a writing system using picture symbols; used in ancient Egypt



                                                                          adj. 免疫的;免于……的,免除的
                                                                          n. 免疫者;免除者

                                                                          1. a person who is immune to a particular infection
                                                                          2. relating to the condition of immunity
                                                                          3. secure against
                                                                          4. relating to or conferring immunity (to disease or infection)
                                                                          5. (usually followed by `to') not affected by a given influence



                                                                            vt. 孵化;培养;温育;逐渐发展
                                                                            vi. 孵化;酝酿
                                                                            n. 孵育物

                                                                            1. grow under conditions that promote development
                                                                            2. sit on (eggs)



                                                                              n. 保险;保险费;保险契约;赔偿金

                                                                              1. promise of reimbursement in the case of loss; paid to people or companies so concerned about hazards that they have made prepayments to an insurance company
                                                                              2. written contract or certificate of insurance
                                                                              3. protection against future loss



                                                                                adj. 讽刺的(等于ironic);用反语的

                                                                                1. characterized by often poignant difference or incongruity between what is expected and what actually is
                                                                                2. humorously sarcastic or mocking



                                                                                  adj. 不可抵抗的;不能压制的;极为诱人的

                                                                                  1. impossible to resist; overpowering
                                                                                  2. overpoweringly attractive



                                                                                    vi. 跳,跳跃
                                                                                    n. 飞跃;跳跃
                                                                                    vt. 跳跃,跳过;使跃过
                                                                                    n. (Leap)人名;(法)莱亚

                                                                                    1. a light, self-propelled movement upwards or forwards
                                                                                    2. an abrupt transition
                                                                                    3. a sudden and decisive increase
                                                                                    4. the distance leaped (or to be leaped)
                                                                                    5. move forward by leaps and bounds



                                                                                      adj. 忠诚的,忠心的;忠贞的
                                                                                      n. 效忠的臣民;忠实信徒
                                                                                      n. (Loyal)人名;(英、德、西、匈、法)洛亚尔

                                                                                      1. steadfast in allegiance or duty
                                                                                      2. inspired by love for your country
                                                                                      3. unwavering in devotion to friend or vow or cause



                                                                                        n. 细菌,微生物

                                                                                        1. a minute life form (especially a disease-causing bacterium); the term is not in technical use



                                                                                          n. 微波

                                                                                          1. a short electromagnetic wave (longer than infrared but shorter than radio waves); used for radar and microwave ovens and for transmitting telephone, facsimile, video and data
                                                                                          2. kitchen appliance that cooks food by passing an electromagnetic wave through it; heat results from the absorption of energy by the water molecules in the food
                                                                                          3. cook or heat in a microwave oven



                                                                                            n. 肌肉;力量
                                                                                            vt. 加强;使劲搬动;使劲挤出
                                                                                            vi. 使劲行进

                                                                                            1. one of the contractile organs of the body
                                                                                            2. animal tissue consisting predominantly of contractile cells
                                                                                            3. a bully employed as a thug or bodyguard
                                                                                            4. authority or power or force (especially when used in a coercive way)
                                                                                            5. possessing muscular strength



                                                                                              n. 谈判;转让;顺利的通过

                                                                                              1. a discussion intended to produce an agreement
                                                                                              2. the activity or business of negotiating an agreement; coming to terms




                                                                                                1. a cell that is specialized to conduct nerve impulses



                                                                                                  n. 障碍,干扰;妨害物

                                                                                                  1. something immaterial that stands in the way and must be circumvented or surmounted
                                                                                                  2. an obstruction that stands in the way (and must be removed or surmounted or circumvented)



                                                                                                    n. 清唱剧;宗教剧

                                                                                                    1. a musical composition for voices and orchestra based on a religious text



                                                                                                      vt. 为…拍照;使深深印入
                                                                                                      vi. 拍照;在照片上显得
                                                                                                      n. 照片,相片

                                                                                                      1. a picture of a person or scene in the form of a print or transparent slide; recorded by a camera on light-sensitive material
                                                                                                      2. record on photographic film
                                                                                                      3. undergo being photographed in a certain way



                                                                                                        n. 枢轴;中心点;旋转运动
                                                                                                        vt. 以…为中心旋转;把…置于枢轴上
                                                                                                        vi. 在枢轴上转动;随…转移
                                                                                                        adj. 枢轴的;关键的
                                                                                                        n. (Pivot)人名;(德)皮福特;(法)皮沃

                                                                                                        1. the person in a rank around whom the others wheel and maneuver
                                                                                                        2. axis consisting of a short shaft that supports something that turns
                                                                                                        3. the act of turning on (or as if on) a pivot
                                                                                                        4. turn on a pivot



                                                                                                          vt. 使丰满;使鼓起;突然放下
                                                                                                          adv. 沉重地;突然地
                                                                                                          vi. 变丰满;鼓起
                                                                                                          adj. 圆胖的,丰满的;鼓起的
                                                                                                          n. 扑通声

                                                                                                          1. the sound of a sudden heavy fall
                                                                                                          2. drop sharply
                                                                                                          3. set (something or oneself) down with or as if with a noise
                                                                                                          4. make fat or plump
                                                                                                          5. give support (to) or make a choice (of) one out of a group or number



                                                                                                            n. 多边形;多角形物体

                                                                                                            1. a closed plane figure bounded by straight sides



                                                                                                              adj. 笨重的;沉闷的;呆板的
                                                                                                              比较级more ponderous 最高级most ponderous

                                                                                                              1. slow and laborious because of weight
                                                                                                              2. having great mass and weight and unwieldiness
                                                                                                              3. labored and dull



                                                                                                                n. 前任,前辈

                                                                                                                1. one who precedes you in time (as in holding a position or office)



                                                                                                                  n. 比例;部分;面积;均衡
                                                                                                                  vt. 使成比例;使均衡;分摊

                                                                                                                  1. the quotient obtained when the magnitude of a part is divided by the magnitude of the whole
                                                                                                                  2. magnitude or extent
                                                                                                                  3. balance among the parts of something
                                                                                                                  4. harmonious arrangement or relation of parts or elements within a whole (as in a design)
                                                                                                                  5. give pleasant proportions to



                                                                                                                    n. 木偶;傀儡;受他人操纵的人

                                                                                                                    1. a small figure of a person operated from above with strings by a puppeteer
                                                                                                                    2. a person who is controlled by others and is used to perform unpleasant or dishonest tasks for someone else
                                                                                                                    3. a doll with a hollow head of a person or animal and a cloth body; intended to fit over the hand and be manipulated with the fingers



                                                                                                                      adj. 合理的;理性的
                                                                                                                      n. 有理数

                                                                                                                      1. an integer or a fraction
                                                                                                                      2. consistent with or based on or using reason
                                                                                                                      3. of or associated with or requiring the use of the mind
                                                                                                                      4. capable of being expressed as a quotient of integers
                                                                                                                      5. having its source in or being guided by the intellect (distinguished from experience or emotion)



                                                                                                                        adv. 容易地;乐意地;无困难地

                                                                                                                        1. without much difficulty
                                                                                                                        2. in a punctual manner



                                                                                                                          adj. 定期的;有规律的;合格的;整齐的;普通的
                                                                                                                          n. 常客;正式队员;中坚分子
                                                                                                                          adv. 定期地;经常地
                                                                                                                          n. (Regular)人名;(以)雷古拉尔

                                                                                                                          1. a regular patron
                                                                                                                          2. a soldier in the regular army
                                                                                                                          3. a dependable follower (especially in party politics)
                                                                                                                          4. a garment size for persons of average height and weight
                                                                                                                          5. in accordance with fixed order or procedure or principle



                                                                                                                            vt. 使年轻;使更新;使恢复精神;使复原
                                                                                                                            vi. 复原;变年轻

                                                                                                                            1. cause (a stream or river) to erode, as by an uplift of the land
                                                                                                                            2. develop youthful topographical features
                                                                                                                            3. make younger or more youthful
                                                                                                                            4. return to life; get or give new life or energy
                                                                                                                            5. become young again



                                                                                                                              adj. 居住的;住院医师;定居的
                                                                                                                              n. 居民

                                                                                                                              1. someone who lives at a particular place for a prolonged period or who was born there
                                                                                                                              2. a physician (especially an intern) who lives in a hospital and cares for hospitalized patients under the supervision of the medical staff of the hospital
                                                                                                                              3. living in a particular place
                                                                                                                              4. used of animals that do not migrate



                                                                                                                                n. 资源,财力;办法;智谋

                                                                                                                                1. available source of wealth; a new or reserve supply that can be drawn upon when needed
                                                                                                                                2. a source of aid or support that may be drawn upon when needed
                                                                                                                                3. the ability to deal resourcefully with unusual problems



                                                                                                                                  n. [劳经] 报酬;报答;酬谢
                                                                                                                                  vt. [劳经] 奖励;奖赏

                                                                                                                                  1. a recompense for worthy acts or retribution for wrongdoing
                                                                                                                                  2. payment made in return for a service rendered
                                                                                                                                  3. an act performed to strengthen approved behavior
                                                                                                                                  4. the offer of money for helping to find a criminal or for returning lost property
                                                                                                                                  5. benefit resulting from some event or action



                                                                                                                                    n. 刮掉;擦痕;困境;刮擦声
                                                                                                                                    vt. 刮;擦伤;挖成
                                                                                                                                    vi. 刮掉;刮出刺耳声

                                                                                                                                    1. a harsh noise made by scraping
                                                                                                                                    2. an abraded area where the skin is torn or worn off
                                                                                                                                    3. a deep bow with the foot drawn backwards (indicating excessive humility)
                                                                                                                                    4. an indication of damage
                                                                                                                                    5. scratch repeatedly



                                                                                                                                      n. 系列,连续;[电] 串联;级数;丛书

                                                                                                                                      1. similar things placed in order or happening one after another
                                                                                                                                      2. a serialized set of programs
                                                                                                                                      3. a periodical that appears at scheduled times
                                                                                                                                      4. (sports) several contests played successively by the same teams
                                                                                                                                      5. a group of postage stamps having a common theme or a group of coins or currency selected as a group for study or collection



                                                                                                                                        vi. 炖;内心充满;即将爆发
                                                                                                                                        vt. 炖
                                                                                                                                        n. 炖;即将沸腾的状态;即将发作
                                                                                                                                        n. (Simmer)人名;(德、捷)西默尔;(法)西梅

                                                                                                                                        1. temperature just below the boiling point
                                                                                                                                        2. boil slowly at low temperature



                                                                                                                                          adj. 专业的;专门的
                                                                                                                                          v. 专攻(specialize的过去分词);使…专门化;详细说明

                                                                                                                                          1. developed or designed for a special activity or function
                                                                                                                                          2. marked by or characteristic of specialization in a mechanical or scientific subject



                                                                                                                                            n. 鼓舞,刺激;马刺;山坡
                                                                                                                                            vi. 骑马疾驰;给予刺激
                                                                                                                                            vt. 激励,鞭策;给…装踢马刺
                                                                                                                                            n. (Spur)人名;(意)斯普尔;(德)施普尔

                                                                                                                                            1. a verbalization that encourages you to attempt something
                                                                                                                                            2. any sharply pointed projection
                                                                                                                                            3. tubular extension at the base of the corolla in some flowers
                                                                                                                                            4. a sharp prod fixed to a rider's heel and used to urge a horse onward
                                                                                                                                            5. a railway line connected to a trunk line



                                                                                                                                              n. 物质;实质;资产;主旨

                                                                                                                                              1. that which has mass and occupies space
                                                                                                                                              2. the stuff of which an object consists
                                                                                                                                              3. the choicest or most essential or most vital part of some idea or experience
                                                                                                                                              4. the idea that is intended
                                                                                                                                              5. considerable capital (wealth or income)



                                                                                                                                                n. 象征;符号;标志

                                                                                                                                                1. an arbitrary sign (written or printed) that has acquired a conventional significance
                                                                                                                                                2. something visible that by association or convention represents something else that is invisible



                                                                                                                                                  n. 承租人;房客;佃户;居住者
                                                                                                                                                  vt. 租借(常用于被动语态)
                                                                                                                                                  n. (Tenant)人名;(法)特南

                                                                                                                                                  1. someone who pays rent to use land or a building or a car that is owned by someone else
                                                                                                                                                  2. a holder of buildings or lands by any kind of title (as ownership or lease)
                                                                                                                                                  3. any occupant who dwells in a place
                                                                                                                                                  4. occupy as a tenant



                                                                                                                                                    n. 触手,[动] 触须,[动] 触角

                                                                                                                                                    1. something that acts like a tentacle in its ability to grasp and hold
                                                                                                                                                    2. any of various elongated tactile or prehensile flexible organs that occur on the head or near the mouth in many animals; used for feeling or grasping or locomotion



                                                                                                                                                      adj. 纤细的;稀薄的;贫乏的

                                                                                                                                                      1. having little substance or significance
                                                                                                                                                      2. having thin consistency
                                                                                                                                                      3. very thin in gauge or diameter



                                                                                                                                                        vt. 捻;拧;扭伤;编织;使苦恼
                                                                                                                                                        n. 扭曲;拧;扭伤
                                                                                                                                                        vi. 扭动;弯曲
                                                                                                                                                        n. (Twist)人名;(英)特威斯特

                                                                                                                                                        1. an unforeseen development
                                                                                                                                                        2. an interpretation of a text or action
                                                                                                                                                        3. any clever maneuver
                                                                                                                                                        4. the act of rotating rapidly
                                                                                                                                                        5. a sharp strain on muscles or ligaments



                                                                                                                                                          adj. 紫外的;紫外线的
                                                                                                                                                          n. 紫外线辐射,紫外光

                                                                                                                                                          1. radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
                                                                                                                                                          2. having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end



                                                                                                                                                            adj. 城市的;住在都市的
                                                                                                                                                            n. (Urban)人名;(西)乌尔万;(斯洛伐)乌尔班;(德、俄、罗、匈、塞、波、捷、瑞典、意)乌尔班;(英)厄本;(法)于尔邦

                                                                                                                                                            1. relating to or concerned with a city or densely populated area
                                                                                                                                                            2. located in or characteristic of a city or city life



                                                                                                                                                              n. 变化;[生物] 变异,变种

                                                                                                                                                              1. an instance of change; the rate or magnitude of change
                                                                                                                                                              2. an activity that varies from a norm or standard
                                                                                                                                                              3. a repetition of a musical theme in which it is modified or embellished
                                                                                                                                                              4. something a little different from others of the same type
                                                                                                                                                              5. an artifact that deviates from a norm or standard