2018考研英语备考：历年考研高频词组（15）
211. be on duty 值班, 值日, 在上班时212. be in duty bound to (do) (=be required by one’s job or esp. by conscience) 有义务(做
213. be eager for 想得到, 盼望
214. by ear (=play music from memory without having seen it printed) 凭记忆,不看乐谱
215. have an ear for (=have keen recognition of sounds esp. in music and language)对..有鉴赏力
216. a word in one’s ear 私房话, 秘密话
217. on earth 究竟, 到底, 全然
218. with ease ( = easily) 容易, 不费力
219. at (one’s) ease ( = without worry or nervousness) 自在,不拘束
220. put sb. at his / her ease (=free sb. from worry or nervousness)使某人感到无拘束
221. economize on (=save sth. instead of being wasteful) 节省
222. have an effect on 对…有影响
223. be in effect (=be in operation) 有效
224. go into effect 生效. ( 近: come into effect; take effect; be brought into effect)
225. in effect (=in fact, really) 实际上
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