n 　　英语的演变是一个很有意思的过程，英语中有很多词汇都是有很有意思的“背景”，那么关于它们究竟是怎么样的，又该如何使用呢? 我们一起来探个究竟，以下是小编给大家整理的专业四级高频词汇及短语-7，希望可以帮到大家

n 　　121. be certain of (=be sure of) 有把握, 一定

n 　　a) We are certain of victory. 我们一定会获得胜利。

n 　　122. for certain (=for sure )肯定地,有把握地

n 　　a) Some soils are actually too alkaline for certain plant life.

n 　　123. by chance(=accidentally, by accident)偶然

n 　　a) They met by chance on a plane.

n 　　b) 他们在飞机上不期而遇

n 　　124. for a change换换环境(花样等)

n 　　a) ate early for a change. 变化一下提早吃饭

n 　　125. in charge of (=responsible for) 负责(某事)

n 　　a) Who's in Charge of this Network?

n 　　126. take charge of (be responsible for)负责管理(照顾)

n 　　a) 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。

n 　　127. charge…for 因…索取(费用),charge sb with sth 控告某人犯有…

n 　　a) Charges ten dollars for a haircut.

n 　　128. round the clock(=all day and all night, usually without stopping) 昼夜不停地

n 　　a) This is a terrific mission and we are very busy doing science round the clock.

n 　　129. comment on sth评论

n 　　a) Everyone commented on her new hat.

n 　　b) 大家都在评论她的新帽子。

n 　　c) He commented on the bad road.

n 　　d) 他评论这条糟糕的路。

n 　　130. commit oneself to致力于

n 　　a) I commit myself to strive for grades of “C” or better in all my high school classes and to benefit fully from the classes offered during the summer program.

n 　　131. commit sb to prison把某人送进监狱;

n 　　a) A robbery was committed to prison last night.

n 　　b) 昨晚发生了一个强盗被送入了监狱。

n 　　132. to commit oneself to a promise 受诺言的约束

n 　　133. in common (和…)有共同之处,共用

n 　　a) We have many things in common.

n 　　134. common touch n. 平易近人的特性

n 　　a) An effective administrator and also an effective leader, with a common touch

n 　　b) 有效的行政人员，也是有效的领导者，通常有平易近人的品质

n 　　135. be common to sb 是与某人所共有的

n 　　136. keep company with (=be friendly and go out together) 和…要好

n 　　a) If you keep company with a person or with a particular kind of person, you spend a lot of time with them.

n 　　137. compare A with B 把…与…比较

n 　　a) compare one thing with another

n 　　b) 将一物与另一物比较

n 　　138. compare A to B 把…比作…

n 　　a) Man's life is often compared to a candle.

n 　　b) 人生常被喻为蜡烛。

n 　　139. by comparison(with) 比较起来

n 　　a) He puffed the new system by showing how badly his existing system performed by comparison.

n 　　b) Agricultural productivity remained low by comparison with advanced countries like the United States.