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VERB
做事;行动
When you act, you do something for a particular purpose.
例句
The deaths occurred when police acted to stop widespread looting and vandalism...
警方采取行动制止猖狂的打砸抢行为时有多人丧生。
I do not doubt that the bank acted properly.
我毫不怀疑银行的处理方式是妥当的。
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VERB
遵照…行动；奉行
If you act on advice or information, you do what has been advised or suggested.
例句
A patient will usually listen to the doctor's advice and act on it.
患者通常都会遵照医嘱行事。
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VERB
举止;表现
If someone acts in a particular way, they behave in that way.
例句
...a gang of youths who were acting suspiciously...
一伙形迹可疑的年轻人
He acted as if he hadn't heard any of it...
他表现得好像对此毫不知情。
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VERB
起作用;充当
If someone or something acts as a particular thing, they have that role or function.
例句
He acted both as the ship's surgeon and as chaplain for the men.
他在船上为水手们兼作外科医生和牧师。
...the Cunard Princess, which acted as a support ship for American forces.
用作美军支援船的公主号冠达邮轮
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VERB
假装;故作
If someone acts in a particular way, they pretend to be something that they are not.
例句
Chris acted astonished as he examined the note...
克里斯检查记录时故作震惊状。
Kenworthy had tried not to act the policeman.
肯沃西努力表现得不像个警察。
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VERB
代理；代表
When professionals such as lawyers act for you, or act on your behalf, they are employed by you to deal with a particular matter.
例句
...the law firm that acted for Diana during her marriage split...
在戴安娜婚姻破裂期间为她做代理的法律事务所
Because we travelled so much, Sam and I asked a broker to act on our behalf.
由于我们经常游历在外，我和萨姆便请了一位经纪人代表我们处理事务。
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VERB
影响；作用于
If a force or substance acts on someone or something, it has a certain effect on them.
例句
He's taking a dangerous drug: it acts very fast on the central nervous system...
他正在服用一种危险的药物：这种药物能很快影响到中枢神经系统。
A hypnotist can act upon the unconscious mind directly.
催眠师能直接作用于无意识思维。
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VERB
表演；演（戏）；出演（角色）
If you act, or act a part in a play or film, you have a part in it.
例句
She confessed to her parents her desire to act...
她向父母坦言了自己想演戏的愿望。
She acted in her first film when she was 13 years old.
13岁时她出演了她的电影处女作。
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N-COUNT
行为；行动
An act is a single thing that someone does.
例句
Language interpretation is the whole point of the act of reading...
阅读行为中关键在于对语言的理解。
My insurance excludes acts of sabotage and damage done by weapons of war.
我购买的保险对于蓄意损坏以及战争中武器造成的损坏不予赔偿。
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N-SING
装模作样;装腔作势
If you say that someone's behaviour is an act, you mean that it does not express their real feelings.
例句
There were moments when I wondered: did she do this on purpose, was it all just a game, an act?...
有时我很困惑：她这么做是故意的吗？难道一切都只是一场游戏，是逢场作戏？
His anger was real. It wasn't an act.
他是真的生气了，不是在摆样子。
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N-COUNT
法案；法令；条例
An Act is a law passed by the government.
例句
...an Act of Parliament.
议会法案
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N-COUNT
（戏剧、歌剧、芭蕾舞剧等的）幕
An act in a play, opera, or ballet is one of the main parts into which it is divided.
例句
Act II contained one of the funniest scenes I have ever witnessed...
第二幕里有我看过的最搞笑的场面之一。
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N-COUNT
（演出中的）短节目
An act in a show is a short performance which is one of several in the show.
例句
This year numerous bands are playing, as well as comedy acts...
今年除了那些搞笑短剧外，还会有众多乐队登台献艺。
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PHRASE
当场抓住；抓现行
If you catch someone in the act, you discover them doing something wrong or committing a crime.
例句
The men were caught in the act of digging up buried explosives.
那些人在挖掘掩埋的爆炸物时被逮个正着。
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PHRASE
改邪归正；重新做人
If someone who has been behaving badly cleans up their act, they start to behave in a more acceptable or responsible way.
例句
The nation's advertisers need to clean up their act.
该国的广告商需要规范自己的行为。
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PHRASE
（为了得到好处等）参与，插一手
If you get in on the act, you take part in or take advantage of something that was started by someone else.
例句
In the 1970s Kodak, anxious to get in on the act, launched its own instant camera.
20世纪70年代，急于分一杯羹的柯达公司推出了自己的拍立得相机。
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PHRASE
正在做…
You say that someone was in the act of doing something to indicate what they were doing when they were seen or interrupted.
例句
Ken was in the act of paying his bill when Neil came up behind him.
当尼尔从后面走过来时，肯正在付账。
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PHRASE
全力以赴；集中精力；劲儿往一处使
If you get your act together, you organize your life or your affairs so that you are able to achieve what you want or to deal with something effectively.
例句
The Government should get its act together...
政府应该集中力量。
We have to get our act together — we have to organize ourselves.
我们必须把劲儿往一处使——我们得组织起来。