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Question 1

arroyo

Answer 1

n. 干涸的河床，小河

A dry gully, a creek

Question 2

Brook

Answer 2

n. 小河

A small stream

Question 3

Canyon

Answer 3

n. 峡谷

A long, narrow valley between cliffs

Question 4

Gully

Answer 4

n. 溪谷，冲沟

Question 5

Ravine

Answer 5

n. 峡谷，溪谷

Question 6

valley

Answer 6

n. 山谷

Question 7

Cape

Answer 7

n. 披肩，短斗篷
A cloak
n. 海角

Question 8

Cavern

Answer 8

n. 大洞穴

A large cave

Question 9

Crater

Answer 9

n. 火山口
A bowl-shaped cavity
n. 弹坑
A pit made by an exploding bomb

Question 10

Creek

Answer 10

n. 小湾，小溪

A small stream, somewhat larger than a brook忍受，小溪

Question 11

Crest

Answer 11

n. 山顶，浪尖
Top of hill or wave
n. 羽冠
Showy feathers on the head of a bird

Question 12

Eddy

Answer 12

n. 漩涡，涡流

Little whirlpool or whirlwind

Question 13

Fluvial

Answer 13

a. 河流的，生长在河中的

Of, or living in a stream or river

Question 14

Ford

Answer 14

n. 浅谈，水浅可涉处
A shallow place in a body of water
n. 涉水
To cross by wading

Question 15

Geyser

Answer 15

n. 天然热喷泉

A spring from which columns of boiling water and steam gush into the air at intervals

Question 16

Gorge

Answer 16

n. 峡谷

A narrow steep-walled canyon or part of a canyon

Question 17

Grotto

Answer 17

n. 洞穴

Small cavern

Question 18

insular

Answer 18

adj. 岛屿的；心胸狭窄的
narrow-minded, illiberal
cosmopolitan 世界性的

Question 19

isthmus

Answer 19

n. 地峡

a narrow strip of land

Question 20

marine

Answer 20

adj. 海的；海中的

of the sea; inhabiting in the sea

Question 21

maritime

Answer 21

adj. 沿海的；海上的

adjacent to the sea; nautical

Question 22

marsh

Answer 22

n. 沼泽地，湿地
a tract of low, wet, soft land; swamp
march 行军

Question 23

mesa

Answer 23

n. 高台地，平顶山

a land formation having steep walls and a relative flat top

Question 24

mire

Answer 24

n. 泥沼；困境
marsh; a troublesome situation
v. 使...陷入困境
to hamper or hold back as if by mire
extricate 解脱困境

Question 25

oasis

Answer 25

n. 绿洲 | a fertile place in desert

Question 26

peninsula

Answer 26

n. 半岛 | a piece of land surrounded by water on three sides

Question 27

pinnacle

Answer 27

n. 尖塔；山峰，顶峰 | spire; a lofty peak; summit

Question 28

precipice

Answer 28

n. 悬崖 | a very steep or over hanging place

Question 29

ravine

Answer 29

n. 深谷，峡谷 | a small narrow steep-sided valley that is larger than a gully and smaller than a canyon

Question 30

ridge

Answer 30

n. 脊（如屋脊，山脊等）；隆起物

Question 31

rivulet

Answer 31

n. 小溪，小河 | a small stream

Question 32

shoal

Answer 32

n. 浅滩，浅水处 a sandbank where the water is shallow n. 一群（鱼等） a. 水浅的

Question 33

strait

Answer 33

n. 海峡 a. 狭窄的 narrow

Question 34

stratum

Answer 34

n. 地层；社会阶层 | strata

Question 35

swamp

Answer 35

n. 沼泽 land which is always full of water v. 使陷入；淹没 to cause to have a large mount of problem to deal with

Question 36

whirlpool

Answer 36

n. 漩涡 | a place with circular currents of water in a sea

Question 37

cascade

Answer 37

n. 小瀑布 | a small, steep waterfall

Question 38

crag

Answer 38

n. 悬崖，峭壁 | a steep, rugged rock that rises above others

Question 39

estuary

Answer 39

n. 河口，三角湾 an inlet or arm of the sea inlet入口湾 arm海湾

Question 40

gulch

Answer 40

n. 深谷，峡谷 a steep walled valley; narrow ravine gulf 海湾，深渊

Question 41

knoll

Answer 41

n. 小山；小圆丘 a hillock; mound knot 结

Question 42

lagoon

Answer 42

n. 泻湖 | shallow body of water or lake near a sea

Question 43

moor

Answer 43

n. 旷野地，荒野 open uncultivated land v. 使（船）停泊 to hold a ship in place

Question 44

morass

Answer 44

n. 沼泽地；困境 marsh; entanglement v. 陷入困境

Question 45

quagmire

Answer 45

n. 沼泽地；困境 | soft miry land; predicament

Question 46

scarp

Answer 46

n. 悬崖，陡坡 | steep slope; escarpment

Question 47

tundra

Answer 47

n. 冻原，苔原 | rolling treeless plain in Siberia and arctic North America