Ø take the floor 起立发言
　　 It is with great emotion, that I take the floor here today.
　　 Ø on business 出差办事 (对应for pleasure)
　　 I’m here on business.
　　 Ø be busy with sth于某事。
　　 be busy doing sth 忙于做某事
　　 He busied himself with answering letters.
　　 他忙于回信。
　　 Ø last but one 倒数第二
　　 Jack was the last but one to arrive.杰克是倒数第二个到达的。
　　 Ø but for (=without) 要不是(表示假设)
　　 But for my brother’s help, I would not have finished.
　　 要不是我兄弟的帮助，我是无法完成的。
　　 Ø buy sth for…money 用多少钱买
　　 She bought her friend a present for 50 RMB.
　　 她花了50元买了一件礼物给她的朋友。
　　 Ø be capable of 能够, 有能力
　　 Are you capable of climbing that tree?
　　 你能爬上那棵树吗？
　　 Ø in any case(at any rate, at any price, at any cost, anyhow)无论如何
　　 It’s too late, in any case. 无论如何太晚了。
　　 Ø in case (=for fear that) 万一;
　　 took along an umbrella, just in case.
　　 随身带一把伞，以防万一
　　 Ø in case of (=in the event of, if)如果发生…万一
　　 This is a case of stupidity, not dishonesty.
　　 这只是个愚蠢的例子,并非不诚实。
　　 Ø in the case of 在...的情况
　　 What to do in the case of an eye injury?
　　 Ø in no case在任何情况下都不(放句首倒装句)
　　 In no case do we recommend that anyone go below 100 Nutripoints daily because you really cannot expect to get adequate nutrients at this level.
　　 Ø be cautious of 谨防
　　 He was cautious of his footing, wary of the edge.
　　 Ø center one’s attention on(=focus one’s attention on) 把某人的注意力集中在…上
　　 Industrial development is being centered its attention on the west of the country.
　　 这个国家的西部正集中发展工业。
　　 Ø be certain of (=be sure of) 有把握, 一定
　　 We are certain of victory. 我们一定会获得胜利。
　　 Ø for certain (=for sure )肯定地,有把握地
　　 Some soils are actually too alkaline for certain plant life.
　　 Ø by chance(=accidentally, by accident)偶然
　　 They met by chance on a plane.
　　 他们在飞机上不期而遇
　　 Ø for a change换换环境(花样等)
　　 ate early for a change. 变化一下提早吃饭
　　 Ø in charge of (=responsible for) 负责(某事)
　　 Who’s in Charge of this Network?
　　 Ø take charge of (be responsible for)负责管理(照顾)
　　 She is the youngest manager who takes charge of the overseas business in the company.她是这个公司里负责海外业务最年轻的经理。
　　 Ø charge…for 因…索取(费用),charge sb with sth 控告某人犯有…
　　 Charges ten dollars for a haircut.