act /ækt/ I.vi.& vt. 1.做事，行动：Think before you act.三思而后行。2.演戏，扮演：She acts well. 她演技很好。Who’s acting (the part of) Hamlet? 谁扮演哈姆雷特? 3. 起作用: By gravitation the sun and the planets act and react upon one another. 由于引力,太阳与行星互相作用。4. 用于习语或短语动词 act on 按某人说的做：He gave me good advice, but I didn’t act on it. 他给了我很好的建议，但我没有按照建议去办。act as 担任，充当： He acted as chairman in my absence. 我不在时他担任主席。act out 表演，表达思想：The children were told to act out a verse of their favourite poem. 孩子们被要求表演他们所喜欢的诗句。act up 失灵；表现不好：My car has been acting up again - I must get someone to have a look at it. 我的车又不行了，我得找个人瞧瞧。‖II. n. 1.［u］行为，行动：It is my own act. Why do you bring my mother in? 那是我自己干的事，你把我母亲牵扯进来干什么? in the act of 正在干某件坏事或错事: I caught him in the act of opening one of my letters.他正在拆开我的一封信的时候让我逮个正着。2.［c］法令，条例：pass an act 通过一个法案 3.［c］(戏的)一幕：a one-act play 独幕剧；a play in 5 acts 五幕剧
action /ˈækʃən/ n. 1.行动，行为(泛指行动时［u］，表示具体的行动时［c］)：take action 采取行动；put into action 付诸实施Actions speak louder than words. 行动比语言更有效。The government is taking strong action on refugees. 政府正在对难民采取强硬措施。2.［u］ 作用：The action of this crank (曲柄) turns the wheel. 这个曲柄的作用是驱动轮子。
