202.distinguish between (=make or recognize differences)辨别
203.distinguish…from把…与…区别开
204.do away with (=get rid of; abolish; discard eliminate)除去,废除,取消; do away with (=kill)杀掉,镇压
205.have…to do with与…有关系
206.without doubt (=undoubtedly)无可置疑地
207.in doubt (=in a condition of uncertainty)对…表示疑惑
208.be due to是由于
209.come off duty下班
210.go on duty上班
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
226.give effect to (=carry out)实行,使…生效
227.to no effect不起作用,没有取得任何效果
228.(be) of no effect (=useless)无效
229.to the effect that大意是…,主要内容是…
230.to that effect是那个意思的…
