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atop

prep.

on, to, or at the top of

audio

a.

connected with or used in the broadcasting or receiving of sound radio signals 听觉的；声音的

boundary

n.

the dividing line, esp. between two areas of land 分界线

brilliant

a.

very bright, splendid, or showy in appearance 光辉的，灿烂的

cabin

n.

a small room on a ship usu. used for sleeping 船舱
a small roughly built (wooden) house 小（木）屋

climate

n.

the type of weather that a region has 气候

communicate

v.

to make known; 告知，传达
to share or exchange opinions, news, information, etc. 交流，交际，通讯

decade

n.

a period of 10 years 十年

directly

ad.

focus

v.

to bring into a focus 集中（注意力）

frog

n.

蛙，青蛙

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hum

v.

to make a continuous low sound 发出嗡嗡声

◆

indicator

n.

a needle or pointer on a machine to show a measurement （测量器的）指针

log

n.

a rough length of tree-trunk 原木

◆

maple

n.

枫树

overtake

v.

to come up to the same level as from behind, and usu. pass 追上，赶上
(of a feeling) to affect very strongly （在感情上）压倒

prairie

n.

(esp. in North America) a wide treeless grassy plain 大草原

residence

n.

the place where one lives 住所

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sensitivity

n.

the quality, state, or degree of being sensitive 敏感（性），灵敏（度）

▲

sober

n.

in control of oneself, not drunk 清醒的；未醉的

species

n.

a division of animals or plants （植物或动物的）品种，种类

studio

n.

a workroom for a painter, photographer, etc. 画室；摄影室

▲

subtle

a.

delicate, hardly noticeable, and esp. pleasant 细致的，微妙的

survive

v.

to continue to live 存活

◆

syrup

n.

sweet liquid, esp. sugar and water 糖浆，糖水

tone

n.

the character or quality of a sound 音色，音质

urge

n.

a strong, deep, often uncontrollable feeling 激情

▲

weird

a.

strange; unnatural 古怪的，奇异的