capital ,capitol
capital: the seat of government 首都、首府
capitol: the buliding in which the government sits 政府大楼
the Capitol --- 美国国会大厦
chef , cook
chef 来自法语，似乎身价更高一些，多指大酒楼的厨师
cook 源于古英语，多指一般的厨师或炊事人员
childish , childlike
childish 孩子气的，指孩子不如人意的地方，如不懂事、幼稚、傻气等，带有
贬义
childlike 孩子般的，多指孩子讨人喜欢的方面，如天真、纯洁、真诚等
company , firm
根据英美企业法，firm只是指partnership(合伙公司)或unincorporated
business（非责任有限公司），
company则可指corporation（责任有限公司）。
complement, compliment
complement: v. （使）完成、补充、补足 n. 补充物
compliment v. n. 表扬、赞美
comprehend understand
understand是深度和广度都超过comprehend的“理解”
You may comprehend every word in this passage, but you may not
understand its overall meaning.
consistent ,persistent
consistent: adj. 前后一致的，始终如一的
persistent: adj. 坚持不懈的， 锲而不舍的
constrain ,restrain
constrain: 强迫、迫使
restrain: 束缚、限制行动
记忆要诀：con-前缀一般都有“把。。。聚集/汇拢在一起”的意念，带有强制性
的感觉，因此constrain 是“强迫、迫使”re-前缀一般是指“向后的运动”
discreet. discrete, discretion
discreet /di’skrit, di’skri:t/: a. (of people or their
behaviour) careful and polite, esp. in what one chooses (not) to say;
showing good sense and judgement a discreet
silence,opposite(反义词）:indiscreet
discrete /di’skrit, di’skri:t/ a. (esp. tech or fml) seperate,
discontinuous
discretion: n. (1) the quality of being discreet (2) the ability
to decide what is most suitable to be done (3) at someone’
discretion: according to someone’s decision (4) years of discretion:
the/an age when one is considered (5) discretion is the better part
of valour