101、by chance(=accidentally， by accident)偶然
102、for a change换换环境(花样等)
103、charge sb. with …控告某人犯有…
104、in charge of (=responsible for) 负责(某事) in the charge of …由…管
105、take charge of (=to be or become responsible for)负责管理(照顾)
106、charge…for 因…索取(费用)， charge sb. with sth. 控告某人犯有…
107、round the clock(=all day and all night， usually without stopping) 昼夜不停地
108、comment on 评论
109、commit oneself to 使自己承担… commit sb. to prison把某人送进监狱; commit one's idea to writing 把某人的想法写下来; commit a matter to a committee 把某事交给委员会讨论
110、in common (和…)有共同之处，共用. be common to sb. 是与某人所共有的