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| VERB |
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| /ækt/ |
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| 1 | I to do something for a particular reason or in a particular way 做事；行动 |
| act in good faith (=believe that you are acting honestly) We acted in good faith – we did not know the goods were stolen. 做事清白 |
| act out of necessity/desperation/love/compassion/curiosity etc She claims that she acted out of necessity (=because she had to) . 她声称自己是迫不得已而为之。 |
| act on sb’ s advice/suggestion/orders I’ m acting on the advice of my lawyers. 我正在按律师的意见行事。 |
| | 1a | to do something immediately , especially in order to deal with an urgent problem （立即）行动（尤指处理紧急情况） | | Had the paramedics not acted so swiftly, he would have died. 要不是急救人员行动迅速，他就没命了。 | | act to do sth We must act now to prevent further damage to our rainforests. 我们现在必须行动起来制止对雨林的进一步破坏。 | |
| | 1b | if you act for someone , you do something as their representative （以某人的名义）行事 | | Lawyers acting for the family will issue a statement this morning. 代表这家人的律师今天早上会发表一份声明。 | | act on sb’ s behalf a dealer acting on behalf of a private buyer 代表一位私人买主的经纪人 | |
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| 2 | I +as to do the job of a particular kind of person 担当（某工作） |
| You speak Greek – will you act as interpreter? 你会说希腊语，那你能当翻译吗？ |
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| 3 | I to behave in a particular way , especially a way that is unusual or annoying 表现，假装（尤指行为不寻常或恼人） |
| Stop acting stupidly! 别装傻！ |
| act like I’ ve acted like a total idiot. 我的行为完全像个白痴。 |
| act suspiciously/strangely A man was seen acting suspiciously twenty minutes before the robbery. 在抢劫案之前20分钟，曾发现一名男子举止可疑。 |
| act as if Just act as if nothing’ s happened. 就假装好像什么事都没发生过。 |
| | 3a | to behave in a particular way by doing something （通过做某事而）表现 | | act reasonably/fairly/illegally/responsibly/dishonestly etc Did the BBC act reasonably in sacking the journalist? BBC开除该记者做得合理吗？ | | The court must establish whether the accused acted illegally. 法庭必须证实被告是否非法行事。 | |
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| 4 | I +as to have a particular effect 有效 |
| The drugs act as a brake on the spread of the disease. 这些药物有制止这种疾病扩散的效果。 |
| | 4a | to start to have an effect 起作用；见效 | | Don’ t expect the medicine to act immediately. 别指望这药能马上见效。 | |
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| 5 | I/T to perform in plays or films （在戏剧或电影中）扮演，演戏 |
| I’ ve always wanted to act. 我一直以来都想演戏。 |
| act the part/role (of sb/sth) Philip Schofield acted the part of Joseph. 菲力普·斯科菲尔德扮演约瑟夫一角。 |
| PHRASAL VERBS |
| - | ˌact ˈout |
| PHRASAL VB |
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| 1 | to copy the events that happened in a situation by pretending to be the people involved 将…表演出来 | The scenarios that the trainees act out are videotaped. 实习生演示的情景被录了下来。 | |
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| 2 | to express your thoughts or feelings through your words or behaviour （用言辞或行动）将（想法或情感）表达出来 | He was acting out his feelings of inferiority by being overly aggressive. 他通过过于暴躁好斗的行为来渲泄自卑感。 | |
| - | ˌact ˈup |
| PHRASAL VB INFORMAL |
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| 1 | if children act up , they behave badly （小孩子）耍脾气，捣蛋 | The kids have been acting up again. 孩子们又不停地在捣蛋了。 | |
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| 2 | if a part of your body or a piece of equipment acts up , it starts to become painful or to develop problems （身体）出毛病；（设备）运转不正常 | I hope my back doesn’ t start acting up again. 希望我的背不会又开始出毛病。 | |
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