201.(be)distinct from(=be different from)与…截然不同
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
