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| /let/ |
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| 1 | T to allow something to happen 允许；让 |
| let sb/sth do sth I stepped back and let him pass. 我往后站让他过去。 |
| Alice’ s mum won’ t let her come with us. 艾丽斯的妈妈不让她跟我们来。 |
| Let your imagination run wild. 充分发挥你的想象力吧。 |
| let sth inoutthrough etc Open the windows and let some fresh air into the room. 打开窗，让一些新鲜空气进来。 |
| There are holes between the stones that let the wind through. 石头间有让风通过的洞。 |
| let sb know (=tell someone) Let us know what time you want us to be there. 让某人知道 |
| let yourself She lets herself be talked into all kinds of schemes. 她听信他人，参与了各种阴谋活动。 |
| | 1a | used for offering to do something （用于表示愿意做某事） | | Here, let me help you. 喂，让我帮你吧。 | |
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| 2 | I/T to rent a room , flat , house etc to someone 出租（房间、套房、房子等） |
| The landlord can let at an agreed market rent. 房东可以按协议过的市场价出租房子。 |
| let sth to sb He’ s let his cottage to some people from London. 他把他的乡间小别墅出租给了一些从伦敦来的人。 |
| | 2a | available to be rented 待租；出租 | | There are three flats to let in the building. 楼里有3间公寓可供出租。 | |
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| 3 | T always in imperative used for giving an order or instruction （用于发出命令或指令） |
| Let the games begin! 开始比赛吧！ |
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| 4 | T always in imperative used for showing that you are angry or tired , and do not care what happens （用于表示生气或疲倦，因而不去管发生的事） |
| Let her do all the work for a change! 换一换，让她干全部的活儿！ |
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| 5 | T usually in imperative technical used in mathematics for saying that you are imagining that something is true , usually in order to prove a principle of mathematics （通常用于证明数学原理）假定，假设 |
| Let x = 5. 设x＝5。 |
| Let ABC be a triangle. 设ABC 为一个三角形。 |
| PHRASES |
| - | let alone
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| used for saying that something is even less likely to happen than another unlikely thing |
| （用于表示某事更不可能）更不用说，更谈不上 |
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| I hardly have time to think these days, let alone relax. 我现在几乎都没有时间思考，更不用说休息了。 |
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| - | let sb be
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| to stop annoying someone |
| 别打扰某人 |
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| Jimmy, let your sister be! 吉米，别打扰你姐姐！ |
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| - | let sth drop/rest
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| to stop talking about something |
| 不再谈论某事物 |
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| I think we’ d better let the matter drop so your father can calm down. 我认为我们最好别再谈这件事了，这样你父亲就会冷静下来。 |
| Just let it rest, would you? 就别再提这事儿了，好吗？ |
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| - | let sth drop/slip
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| to say something important either by accident or in a way that makes it seem like an accident |
| 无意中（或装作无意中）说出重要的事 |
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| She casually let it drop that she would be moving to Paris. 她无意中说出她要搬到巴黎去。 |
| In an unguarded moment, he let it slip that he’ d lost his job. 他一不留神说出自己丢了工作。 |
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| - | let go (of)
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| to stop holding someone or something |
| 放手，松手，放开（某人或某物） |
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| Let go! That hurts. 松手！那样很痛。 |
| She refused to let go of her bag and kicked her attackers several times. 她抓住包不松手，还踢了袭击她的人几脚。 |
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| - | let sb go
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| 1 | to allow a person or animal to go free 放开某人（或动物） | The police had to let her go because of insufficient evidence. 警方因证据不足而不得不放她走。 | |
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| 2 | informal to officially tell someone that they can no longer work at a job （正式）解雇某人 | John was let go after it was discovered that he stole some files. 约翰在偷窃文件一事败露后就被解雇了。 | |
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| - | let sb/sth go
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| to stop holding someone or something |
| 松开（或释放）某人/某物 |
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| Let me go! 放开我！ |
| Reluctantly, he let go her arm. 他不情愿地松开了她的胳膊。 |
| Let the book go – it’ s mine! 把书放下，那是我的！ |
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| - | let sth go informal
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| 1 | to stop thinking or feeling angry about something that is upsetting you 对（烦心的事）不再考虑（或生气） |
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| 2 | to not react to something that someone says, especially something annoying 不予理会（尤指某人说的恼人的话） |
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| - | let sth go for sth
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| if you let something go for a particular amount of money , you agree to sell it for that amount |
| 同意以某个价钱卖出某物 |
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| I can’ t let it go for less than £200. 少于200英镑我可不卖。 |
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| - | let sb have it very informal
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| to attack or criticize someone severely |
| 猛烈攻击某人；严厉批评某人 |
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| - | let it be known that
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| to give information to other people , especially in an indirect way |
| （尤指婉转地）告知，透露（消息） |
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| He let it be known, during dinner, that he was on the lookout for a wife. 他吃饭时透露说他在寻觅一位妻子。 |
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| - | let loose informal
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| 1 | to allow a person or animal to be free 放走（人或动物） | Several of the dogs were let loose last night. 其中的几只狗昨晚被放走了。 | |
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| 2 | to express strong emotions or opinions 表达（强烈的感情或想法） |
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| - | let me see/think
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| used for saying that you need a moment to think about something |
| 让我想想 |
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| Let me see, where did I put my keys? 让我想想，我把钥匙放哪儿了呢？ |
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| - | let me tell you informal
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| used for emphasizing what you are saying |
| （用于强调所说的话）我跟你说 |
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| It was quite a show, let me tell you! 我跟你说，那景象可壮观着哪！ |
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| - | let sth pass
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| to not react to something that someone says, especially something annoying |
| 对某人说的话（尤指令人恼火的话）不予理会 |
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| His criticism angered her, but rather than start a fight, she let it pass. 他的抨击令她恼火，但她没有和他开战，而是置之不理。 |
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| - | let sth ride informal
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| 1 | to allow a situation to continue instead of dealing with it immediately 听任某种局面继续下去 | The longer you let it ride, the harder it will be to fix later. 这事儿你拖得越久，以后就越难办。 | |
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| 2 | to not react to something that someone says, especially something annoying 对某人说的话（尤指令人恼火的话）不予理会 |
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| - | let’ s
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| 1 | used for suggesting that you and one or more other people do something （用于建议一起做某事） | Let’ s eat now. 我们现在吃饭吧。 | | ‘Do you want to leave?’ ‘Yes, let’ s!’ “你想走吗？”“是的，我们走吧！” | | let us formal Let us be thankful for each other. 让我们为彼此感到高兴吧。 | |
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| 2 | used for saying that someone must admit that a situation exists （用于表示某人必须承认某种情况的存在）我们认了吧 | Let’ s face it, he’ s not cut out for this job. 我们认了吧，他不是干这份工作的料。 | |
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| 3 | used for saying that you hope something is true or will happen （用于表示希望某事属实或会发生） | ‘I’ m sure it’ s nothing to worry about.’ ‘Let’ s hope you’ re right.’ “我敢说这没什么可担心的。”“希望你说的没错。” | | Let’ s hope she never finds out the truth. 希望她永远都发现不了真相。 | |
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| 4 | used for saying that you are not going to tell all the details about something 比如说 | Let’ s just say it wasn’ t her best performance. 比如说这不是她的最佳表现。 | |
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| 5 | used for suggesting that a possible situation needs to be considered 比如说；设想 | Let’ s suppose you lose. What will you do then? 比如说你输了，你到时怎么办？ | |
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| - | let’ s see
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| 1 | used for suggesting that you and one or more other people should find the answer to something 让我们看看 | +ifwhether Let’ s see if it works. 让我们看看这是否行得通。 | |
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| 2 | used for saying that you need a moment to think about something 让我想想 | Let’ s see, where was I? 让我想想，我当时在哪儿呢？ | |
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| 3 | used for asking someone to show you something （用于请求某人展示某事物）让我们看看 | Let’ s see what you’ ve got there. 让我们看一看你在那儿有何收获。 | |
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| - | let sth slide very informal
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| to allow something to become worse by not paying enough attention to it |
| 将某事放任不管 |
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| I’ m glad to see you haven’ t let things slide since I left. 我很高兴我走了之后你没有放任自流。 |
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| - | let there be sth formal
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| 1 | used for expressing a prayer or a hope （用于表达祈祷或希望） | Let there be peace on earth. 但愿世界和平。 | | Let there be no lies between us. 希望我们俩之间没有谎言。 | |
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| 2 | used for emphasis （用于强调） | Let there be no mistake about it, this proposal is the best solution. 显而易见，这个提议是最佳的解决方法。 | | Let there be no doubt that this was an attack on the whole community. 毫无疑问，这是对全体大众的攻击。 | |
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| - | let yourself go informal
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| 1 | to allow yourself to feel and express emotions without trying to control them 尽情地喧泄感情；随心所欲 | Relax and let yourself go. 放松自己，玩个痛快。 | |
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| 2 | to allow your appearance and health to get worse 不修边幅；不注意身体 | He’ s really let himself go in the past few years. 他在过去的几年里实在很邋遢。 | |
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| - | never let it be said that often humorous
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| used for emphasizing the opposite of a statement |
| （用于强调陈述的反面意思）千万别让人说 |
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| ‘Never let it be said that I arrive empty-handed!’ she said, handing him some bread and cheese. “可千万别让人说我是空手来的！”她说着，递给他一些面包和干酪。 |
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| PHRASAL VERBS |
| - | ˌlet ˈdown |
| PHRASAL VB |
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| 1 | to make someone disappointed by not doing something they are expecting you to do 使（某人）失望 | I was a bit late but I couldn’ t let them down completely. 我来得有点儿晚，但我不能让他们彻底失望。 | | The families of the victims feel that the justice system has let them down. 受害者的家属觉得司法制度令他们失望。 | | | 1a | to work less hard or make more mistakes than the people you are working with 使丢脸；使蒙羞 | | She’ s a great player, and never lets her team down. 她是一个很棒的运动员，从来都不会给她的球队丢脸。 | | Any boy who misbehaves will be letting down the whole school. 任何行为不端的孩子都会让整个学校蒙羞。 | | |
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| 2 | to make someone or something less likely to be successful or effective 使略逊一筹；使美中不足 | The whole system is let down by the poor quality of the graphics. 糟糕的图像质量使整个系统有了缺憾。 | |
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| 3 | BRITISH to allow the air to go out of something such as a car tyre 放掉（车胎等的）气 |
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| 4 | to allow someone or something to move to a lower position 放下；使落下 | Let the bucket down carefully into the well. 把桶小心地放到井里。 | |
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| 5 | to use the extra cloth in the hem (= bottom fold) of a piece of clothing to make it longer 放长（衣服）；放出（褶边） |
| | - | let sb down gently
| | to try to give someone bad news in a way that does not upset them too much | | 委婉地把坏消息告诉某人 | | | | | | - | let the side down informal
| | to work less hard or make more mistakes than the people you are working with | | 丢脸；蒙羞 | | | | | |
| - | ˌlet ˈin |
| PHRASAL VB |
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| 1 | let sb in: to allow someone to enter a house , room etc 允许（某人）进入（房子、房间等） | Don’ t let anybody in – I’ ll be back in 15 minutes. 别让任何人进来，我15分钟后回来。 | |
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| 2 | informal to talk to someone about your problems and feelings 和（某人）谈自己的问题和感受 | You’ ve got to learn to let me in. 你得学会让我明白你内心的想法。 | |
| | - | let yourself in for sth informal
| | to put yourself in a difficult situation | | 使自己陷入困境 | | | | She didn’ t know what she was letting herself in for when she married John. 嫁给约翰时，她都不知道这会给自己带来什么样的麻烦。 | | | |
| - | ˌlet ˈin on |
| PHRASAL VB |
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| | let sb in on sth: to tell someone a secret 把（秘密）透露给（某人） | If you promise not to tell, I’ ll let you in on a secret. 如果你答应不说出去，我就告诉你一个秘密。 | | They were planning something, but they wouldn’ t let me in on it. 他们在筹划什么事，但他们不愿让我知道。 | |
| - | ˌlet ˈoff |
| PHRASAL VB |
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| 1 | let sb off sth: BRITISH to allow someone not to do something they were expecting to have to do 允许（某人）不做（本来得做的事） | When we were in port, he let me off work and allowed me to go ashore. 我们在港口停靠时，他准许我不工作，并允许我上岸。 | |
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| 2 | to give someone little or no punishment for something they did wrong 宽恕；从轻处理 | I was pulled over for speeding, but I was let off with a warning. 我因为超速行驶被拦截到路边，但只被警告了一下就放行了。 | | let sb off lightly They let her off lightly because she’ s only sixteen. 因为她只有16岁，所以他们从轻发落了她。 | |
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| 3 | to allow a passenger to get out of a car or off a bus 允许乘客下车 | You can let me off at the corner. 你可以在拐角处让我下车。 | |
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| 4 | to fire a gun or bullet 开（枪）；发射（子弹） | | 4a | to make something such as a bomb explode 使（炸弹等）爆炸 | | |
| | - | let off steam
| | to shout or do something that allows you to get rid of anger | | 宣泄怒火 | | | | | |
| - | ˌlet ˈon |
| PHRASAL VB INFORMAL |
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| 1 | I/T to talk about something that is intended to be a secret 泄漏，透露（秘密） | He knows more than he lets on. 他知道的要比他透露的多。 | | +to How did she plan the surprise party without letting on to her husband? 她是如何瞒着丈夫筹备这个惊喜聚会的？ | | +(that) Don’ t let on that I told you. 不要透露我告诉过你。 | |
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| 2 | T let on sth: to admit something 承认 |
| - | ˌlet ˈout |
| PHRASAL VB |
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| 1 | T to allow a person or animal to leave a place 放出，释放（人或动物） | Would you let the dog out please? 请你把这只狗放出去好吗？ | | | 1a | I when school , film etc lets out , it ends and people leave 放学；（电影）散场 | | |
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| 2 | T to make a noise 发出（声音） | As he walked away, he let out a sigh of relief. 他走开时舒了一口气。 | |
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| 3 | T to use the extra cloth in a fold of a piece of clothing to make it wider 加宽，加大（衣服） | I’ m going to have this skirt let out. 我准备让人把这条裙子加大。 | |
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| 4 | T BRITISH to allow someone to use a room , building etc in exchange for money 出租（房屋等） | We could always let out the spare room. 我们一直可以把这个空余的房间租出去。 | |
| - | ˌlet ˈup |
| PHRASAL VB |
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| 1 | if something bad or unpleasant lets up , it slows down or stops （不好的或令人不快之物）减弱，停止 | The icy wind never let up for a moment. 刺骨的寒风一刻不停地刮着。 | | Things haven’ t let up at work, I’ m still working over 60 hours a week. 工作上的事儿忙不完，我一周仍要工作60小时以上。 | |
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| 2 | to put less effort into something , especially criticizing someone or making them work harder （尤用于批评或促使某人更加努力）放松，懈怠 | Boy, you just never let up, do you? 伙计，你是绝对不会松懈的，对吗？ | | +on She’ s a coach who never lets up on her players. 她是个一贯对自己的运动员要求很严格的教练。 | |
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