101.by chance (= accidentally， by accident) 偶然
102.considerate (=thoughtful of the needs ) 体贴的，考虑他人需要的，considerable相当大的，值得考虑的
103.consist of (=be composed of ) 由……组成的。consist in主要在于。consist with符合，与……一致
104.be consistent with (=be in agreement with) 与……一致。be consistent in一贯的
105.consult sb. on/ about sth. 向……征求……方面的意见，就……向……请教
106.to one‘s heart’s content 尽情地，痛痛快快
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
