英語的演變是一個很有意思的過程，英語中有很多詞匯都是有很有意思的“背景”，那么關于它們究竟是怎么樣的，又該如何使用呢? 我們一起來探個究竟，以下是小編給大家整理的專業四級高頻詞匯及短語-7，希望可以幫到大家

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

　　a) We are certain of victory. 我們一定會獲得勝利。

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

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

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

　　a) They met by chance on a plane.

　　b) 他們在飛機上不期而遇

　　124. for a change換換環境(花樣等)

　　a) ate early for a change. 變化一下提早吃飯

　　125. in charge of (=responsible for) 負責(某事)

　　a) Who's in Charge of this Network?

　　126. take charge of (be responsible for)負責管理(照顧)

　　a) She is the youngest manager who takes charge of the overseas business in the company.她是這個公司里負責海外業務最年輕的經理。

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

　　a) Charges ten dollars for a haircut.

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

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

　　129. comment on sth評論

　　a) Everyone commented on her new hat.

　　b) 大家都在評論她的新帽子。

　　c) He commented on the bad road.

　　d) 他評論這條糟糕的路。

　　130. commit oneself to致力于

　　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.

　　131. commit sb to prison把某人送進監獄;

　　a) A robbery was committed to prison last night.

　　b) 昨晚發生了一個強盜被送入了監獄。

　　132. to commit oneself to a promise 受諾言的約束

　　133. in common (和…)有共同之處,共用

　　a) We have many things in common.

　　134. common touch n. 平易近人的特性

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

　　b) 有效的行政人員，也是有效的領導者，通常有平易近人的品質

　　135. be common to sb 是與某人所共有的

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

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

　　137. compare A with B 把…與…比較

　　a) compare one thing with another

　　b) 將一物與另一物比較

　　138. compare A to B 把…比作…

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

　　b) 人生常被喻為蠟燭。

　　139. by comparison(with) 比較起來

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

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