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… 231. emerge from ( =appear,become known ) 出现,暴露(问题。意见等) 232. place(or put,lay)an emphasis on 强调,把重点放在…上 233. encourage sb. in 鼓励;encourage sb. in hisher work 鼓励某人工作;encourage sb. in hisher idleness 怂恿某人游手好闲 234. encourage sb. in …with sth. 用…鼓励某人做某事 235. on end (=continuously)连续地 236. (be) at an end (=finished)结束了 237. no end of (=very manymuch)很多,大量 238. in the end (=finally,eventually)最终 239. at one‘s wit’s end (=not knowing what to do or to say) 无法可想, 智穷计尽 240. end up with 以…而结束 241. come to and end (=finish) 结束 242. end in 以…为结束 243. engage in 或 be engaged in 忙于,从事 244. enter for (=put the name on a list for) 报名参加 245. enter into (=begin) 开始(谈话, 谈判等) 246. enter on upon (=begin) 开始 (一个时代。 一种生涯。 一段任期等) 247. be entitled to (=be given the right to do sth.)有权…,有资格… 248. be equal to 等于 249. be feel equal to (=have enough strength,ability etc.)(某人)能胜任,能应付 on equal terms(=on and equal footing)平等地 250. be equipped with 装备有,装有