let

英 [let]

美 [let]

v.  允许; 让; 准许; 许可; 同意; 允许(去某处)
n.  (发球时的)擦网球; 出租; 租借

现在分词：letting　过去分词：let　过去式：let　第三人称单数：lets　

中考高考IELTSCET4考研

Oxford 3000 / Collins.5 / BNC.320 / COCA.159

同义词辨析

letallowpermit【导航词义：允许】

短语动词

短语用例

let sb↔down

• 不能帮助，不能支持（某人）；使失望
  to fail to help or support sb as they had hoped or expected

let sb/sth↔down

• （使）略逊一筹，美中不足
  to make sb/sth less successful than they/it should be
  1. They won't let him leave the country.
     他们不许他离开这个国家。
  2. She wanted to lend me some money but I wouldn't let her.
     她想借给我一些钱，可我不同意。

let sth↔down

• 放下；降低；降下
  to let or make sth go down
• （把衣服、裙子、外套等）放长；放出（褶边）
  to make a dress, skirt, coat, etc. longer, by reducing the amount of material that is folded over at the bottom
  1. Let's go to the beach.
     咱们去海滩吧。
  2. Let's not tell her what we did.
     咱们干的事可别告诉她。
  3. Don't let's tell her what we did.
     咱们干的事可别告诉她。
  4. I don't think we'll make it, but let's try anyway.
     我认为我们不一定会成功，但不管怎样还是试一试吧。
  5. ‘Shall we check it again?’ ‘Yes, let's.’
     “我们再检查一下好吗？”“好的。”
• （故意地）放气
  to allow the air to escape from sth deliberately

let sb/yourself in for sth

• 使陷入；使卷入；牵涉
  to involve sb/yourself in sth that is likely to be unpleasant or difficult

let sb in on sth

let sb into sth

• 告知，透露（秘密）
  to allow sb to share a secret
  1. If he thinks he can cheat me, just let him try!
     要是他以为能够骗过我，就让他来试一下吧！

let sth into sth

• 把…置入，把…嵌进（某物的表层）
  to put sth into the surface of sth so that it does not stick out from it
  1. Let her come home safely!
     让她平平安安回家吧！

let sb off (with sth)

• 不惩罚；放过；宽恕；从轻处罚
  to not punish sb for sth they have done wrong, or to give them only a light punishment
  1. Let me give you an example.
     让我来举一个例子吧。
  2. Let me just finish this and then I'll come.
     让我把这个弄完，随后就来。

let sb off sth

• 允许（某人）不做；准许（某人）不去（某处）
  to allow sb not to do sth or not to go somewhere
  1. Let line AB be equal to line CD.
     设AB线与CD线等长。

let sth off

• 放（枪等）；使爆炸
  to fire a gun or make a bomb, etc. explode
  1. I let the spare room.
     我把那间空房出租了。
  2. They decided to let out the smaller offices at low rents.
     他们决定以低租金把那些较小的办公室租出去。

let on (to sb)

• （对某人）说出秘密，泄密
  to tell a secret

let out

• 结束；下课；散场；散会
  to come to an end, so that it is time for people to leave

let sb out

• 使某人解脱
  to make sb stop feeling that they are involved in sth or have to do sth

let sth out

• 发出（叫声等）
  to give a cry, etc.
• （把衬衣、外套等）放大，放长，加宽
  to make a shirt, coat, etc. looser or larger

let up

• 减弱；减轻
  to become less strong
• 放松（努力）；松劲
  to make less effort

习惯用语

v.

let fall sth
• （好像）无意中提及，脱口说出
  to mention sth in a conversation, by accident or as if by accident
• She let fall a further heavy hint.
  她似乎无意中又说出了一个明显的提示。
let sb go
• 放，释放（某人）
  to allow sb to be free
• Will they let the hostages go?
  他们是否会释放人质？
• 解雇；开除
  to make sb have to leave their job
• They're having to let 100 employees go because of falling profits.
  由于利润下降他们将不得不解雇100名人员。
let sb/sth golet go (of sb/sth)
• 放开；松手
  to stop holding sb/sth
• Don't let the rope go.
  别松开绳子。
• Don't let go of the rope.
  别松开绳子。
• Let go! You're hurting me!
  放手！你把我弄疼了。
• 放弃，摒弃（想法、态度或控制）
  to give up an idea or an attitude, or control of sth
• It's time to let the past go.
  该忘掉过去了。
• It's time to let go of the past.
  该忘掉过去了。
let sth go
• 不再照管，撒手不管（房屋、花园等）
  to stop taking care of a house, garden, etc.
• I'm afraid I've let the garden go this year.
  恐怕我今年没有照看好园子。
let yourself go
• 放松；随心所欲
  to behave in a relaxed way without worrying about what people think of your behaviour
• Come on, enjoy yourself, let yourself go!
  来吧，尽情地玩，玩个痛快吧！
• 不注重仪表；不修边幅
  to stop being careful about how you look and dress, etc.
• He has let himself go since he lost his job.
  他失业后就不修边幅了。
let sb have it
• 打，揍，用语言攻击（某人）
  to attack sb physically or with words
let it go (at that)
• 不再多说（或多做）；就到此为止
  to say or do no more about sth
• I don't entirely agree, but I'll let it go at that.
  我不完全同意，但也就这样吧。
• I thought she was hinting at something, but I let it go.
  我想她在暗示什么，然而我也没再多问。
let me see/think
• 让我想一想；让我思考一下
  used when you are thinking or trying to remember sth
• Now let me see─where did he say he lived?
  现在让我想想——他说他住在哪里呢？
let us say
• （提建议或举例）譬如说，比方说，例如
  used when making a suggestion or giving an example
• I can let you have it for, well let's say £100.
  我可以把这东西卖给你，嗯，比如说给我100英镑吧。

n.

without let or hindrance
• 毫无阻碍；顺畅地；自由地
  without being prevented from doing sth; freely

牛津词典

verb

允许 allow
• 允许；让
  to allow sb to do sth or sth to happen without trying to stop it
  1. Let them splash around in the pool for a while.
     让他们在水池里扑腾一会儿吧。
  2. Don't let her upset you.
     别让她搅得你心烦。
  3. Let your body relax.
     让你的身体放松。
  4. He'd eat chocolate all day long if I let him.
     我要是不拦着，他会整天不停地吃巧克力。
• 准许；许可；同意
  to give sb permission to do sth
  1. They won't let him leave the country.
     他们不许他离开这个国家。
  2. She wanted to lend me some money but I wouldn't let her.
     她想借给我一些钱，可我不同意。
• 允许（去某处）
  to allow sb/sth to go somewhere
  1. to let sb into the house
     允许某人进屋
  2. I'll give you a key so that you can let yourself in.
     我把钥匙给你，你可以自己开门进去。
  3. Please let me past.
     请让我过去。
  4. The cat wants to be let out.
     那只猫想要出去。
提出建议 making suggestions
• （提出建议时说）
  used for making suggestions
  1. Let's go to the beach.
     咱们去海滩吧。
  2. Let's not tell her what we did.
     咱们干的事可别告诉她。
  3. Don't let's tell her what we did.
     咱们干的事可别告诉她。
  4. I don't think we'll make it, but let's try anyway.
     我认为我们不一定会成功，但不管怎样还是试一试吧。
  5. ‘Shall we check it again?’ ‘Yes, let's.’
     “我们再检查一下好吗？”“好的。”
提供帮助 offering help
• （提出帮助时说）让，由
  used for offering help to sb
  1. Here, let me do it.
     喂，让我来吧。
  2. Let us get those boxes down for you.
     让我们帮你把那些箱子搬下来吧。
提出要求 making requests
• （提出请求或布置任务时说）要
  used for making requests or giving instructions
  1. Let me have your report by Friday.
     星期五以前要把你的报告交给我。
挑战 challenging
• （表示不害怕或担忧某人做某事）让
  used to show that you are not afraid or worried about sb doing sth
  1. If he thinks he can cheat me, just let him try!
     要是他以为能够骗过我，就让他来试一下吧！
祝愿 wishing
• （表达强烈的愿望）让
  used to express a strong wish for sth to happen
  1. Let her come home safely!
     让她平平安安回家吧！
引出某事 introducing sth
• （引出要讲或要做的事）让
  used to introduce what you are going to say or do
  1. Let me give you an example.
     让我来举一个例子吧。
  2. Let me just finish this and then I'll come.
     让我把这个弄完，随后就来。
计算 in calculating
• （计算时说）假设，设
  used to say that you are supposing sth to be true when you calculate sth
  1. Let line AB be equal to line CD.
     设AB线与CD线等长。
房屋；房间 house/room
• 出租（房屋、房间等）
  to allow sb to use a house, room, etc. in return for regular payments
  1. I let the spare room.
     我把那间空房出租了。
  2. They decided to let out the smaller offices at low rents.
     他们决定以低租金把那些较小的办公室租出去。

noun

网球 in tennis
• （发球时的）擦网球
  a serve that lands in the correct part of the court but must be taken again because it has touched the top of the net
房屋；房间 house/room
• 出租；租借
  an act of renting a home, etc.
  1. a long-term/short-term let
     长期 / 短期出租

柯林斯词典

The form let is used in the present tense and is the past tense and past participle. let的过去式和过去分词与原形相同。


• VERB 允许，任由，让（某事发生）
  If youletsomething happen, you allow it to happen without doing anything to stop or prevent it.
  1. People said we were interfering with nature, and that we should just let the animals die...
     人们说我们是在干涉自然界，还说我们应该任由动物死去。
  2. Thorne let him talk...
     索恩让他畅所欲言。
  3. She let the door slam...
     她听任门砰地关上。
  4. I can't let myself be distracted by those things.
     我不能因为那些事情让自己分神。
• VERB 允许，准许，同意（某人做某事）
  If youletsomeone do something, you give them your permission to do it.
  1. I love sweets but Mum doesn't let me have them very often...
     我爱吃糖，可妈妈不让我常吃。
  2. The Americans won't let her leave the country...
     美国人不允许她出境。
  3. Visa or no visa, they won't let you into the country.
     不管有没有签证，他们都不会让你入境。
• VERB （开门、让路等）允许（…进、出或通过）
  If youletsomeone into, out of, or through a place, you allow them to enter, leave, or go through it, for example by opening a door or making room for them.
  1. I had to get up at seven o'clock this morning to let them into the building because they had lost their keys...
     今天早上我不得不7点钟就起床开门让他们进楼，因为他们把钥匙弄丢了。
  2. I let myself into the flat...
     我自己开门进了公寓。
  3. I'd better go and let the dog out...
     我还是去把这狗放出去吧。
  4. The guards were removing a section of fencing to let it through.
     警卫在拆除一段围栏好让它通过。
• VERB （用于引出要说的话）让我，我来
  You uselet mewhen you are introducing something you want to say.
  1. Let me say it again. I despised Wade's life...
     我再说一遍。我厌恶韦德的生活方式。
  2. Let me tell you what I saw last night...
     我来告诉你我昨晚见到了什么。
  3. Let me explain why...
     让我来解释为什么。
  4. Let me give you one quick example.
     我给你举个简单的例子。
• VERB （用于礼貌地表示愿意提供帮助）让我，我来
  You uselet mewhen you are offering politely to do something.
  1. Let me take your coat...
     我来帮您拿外套。
  2. Let me get you something to drink.
     我给你拿杯喝的来。
• VERB （用于将他人的注意力引向下面的话题）让我们
  You saylet'sor, in more formal English,let us, to direct the attention of the people you are talking to towards the subject that you want to consider next.
  1. Let's consider ways of making it easier...
     咱们来想想办法把它变得更容易些吧。
  2. Let us look at these views in more detail.
     我们来具体研究一下这些观点。
• VERB （用于提出建议或表示赞同）让我们
  You saylet'sor, in formal English,let us, when you are making a suggestion that involves both you and the person you are talking to, or when you are agreeing to a suggestion of this kind.
  1. I'm bored. Let's go home...
     我觉得好无聊。我们回家吧。
  2. 'Shall we go in and have some supper?' — 'Yes, let's.'
     “我们要不要进去吃点晚饭？”——“好啊，走吧。”
• VERB （用于委婉地发出指令）让我们
  Someone in authority, such as a teacher, can uselet'sor, in more formal English,let us, in order to give a polite instruction to another person or group of people.
  1. Let's have some hush, please...
     请大家安静一下。
  2. 'Let us pray,' said the Methodist chaplain.
     “我们来祈祷吧，”那个循道宗牧师说。
• VERB （表示犹豫或思考）让我看看/让我想想
  People often useletin expressions such aslet me seeorlet me thinkwhen they are hesitating or thinking of what to say next.
  1. Now, let's see. Where did I leave my bag?...
     嗯，我想想。我把包放哪儿了？
  2. 'How long you been living together then?' — 'Erm, let me think. It's about four years now.'
     “那你们住在一起有多久了？”——“呃，我想想。到现在差不多4年了。”
• VERB （表示不关心）任由，让，随
  You can useletto say that you do not care if someone does something, although you think it is unpleasant or wrong.
  1. If he wants to do that, let him do it...
     他要做，就让他做好了。
  2. Let them talk about me; I'll be dead, anyway...
     随他们怎么说我吧；我反正是要死的。
  3. 'She'll kill you.' — 'Let her try.'
     “她会杀了你的。”——“那就让她试试。”
• VERB （表示认为某人应该做某事）让
  You can useletwhen you are saying what you think someone should do, usually when they are behaving in a way that you think is unreasonable or wrong.
  1. Let him get his own cup of tea...
     自己的茶让他自己端。
  2. If they value these data, let them pay for them.
     他们要是看重这些数据，就让他们出钱买。
• VERB （表示祈祷或盼望）让
  You can useletwhen you are praying or hoping very much that something will happen.
  1. Please God, let him telephone me.
     上帝啊，求你让他打电话给我吧。
• VERB 假设；假定；如果
  You can useletto introduce an assumption on which you are going to base a theory, calculation, or story.
  1. Let x equal 5 and y equal 3...
     设x等于5，y等于3。
  2. The new man in my life (let's call him Dave) had a very jealous ex-girlfriend.
     我生命中这个新男人（就叫他戴夫吧），他的前女友是个醋坛子。
• VERB 出租（房屋、土地等）
  If youletyour house or landtosomeone, you allow them to use it in exchange for money that they pay you regularly.
  1. She is thinking of letting her house to an American serviceman...
     她正考虑把房子租给一个美国军人。
  2. The reasons for letting a house, or part of one, are varied.
     把整套房子或其中一部分租出去，其原因是多种多样的。
  3. Let outmeans the same aslet.
     let out同let
  4. I couldn't sell the London flat, so I let it out to pay the mortgage...
     我不能把伦敦那套公寓卖掉，所以我把它租出去偿还按揭。
  5. Home owners who have extra space available may want to let out a room.
     有多余空间的屋主也许会想租出个把房间。

in AM, use 美国英语用 rent


Do not confuselet,rent, andhire. You can say that yourenta house or room to someone when they pay you money to live there.We rented our house to an American professor.You can also say that youleta house or room to someone.They were letting a room to a school teacher.In British English, if you pay a sum of money to use something for a short time, you say that youhireit. In American English, it is more common to say that yourentit.He was unable to hire another car... He rented a car for the weekend.If you make a series of payments to use something for a long time, you say that yourentit....the apartment he had rented... He rented a TV.
不要混淆let，rent和hire。出租房屋以收取租金用 rent，如：We rented our house to an American professor（我们把房子租给了一个美国教授）。出租房屋亦可用let，如：They were letting a room to a school teacher（他们把一间房租给了一个学校老师）。在英国英语中，短期租用物品用hire，在美国英语中则更常用rent，例如：He was unable to hire another car（他雇不到别的车），He rented a car for the weekend（他租了辆车周末用）。采用分期付款的方式长期租用物品用rent，如：the apartment he had rented（他租下的公寓），He rented a TV（他租了一台电视机）。

• （网球或羽毛球发球时的）擦网球，触网重发
  In tennis or badminton, if you serve alet, the ball or shuttlecock touches the net but lands in the correct part of the court. You then serve again.
• PHR-CONJ-COORD （通常用在否定句后）遑论，更别提，更不用说
  Let aloneis used after a statement, usually a negative one, to indicate that the statement is even more true of the person, thing, or situation that you are going to mention next.
  1. It is incredible that the 12-year-old managed to even reach the pedals, let alone drive the car.
     12岁的孩子能踩到踏板已经是不可思议，就更不用说开车了。
• PHRASE 不打扰；不干涉
  Toletsomeonebemeans to leave them alone and not interfere in what they are doing.
  1. If your child is really sick and needs sleep and quiet, let him be.
     如果孩子真的病了，需要睡眠和静养的话，就不要去打扰他。
• PHRASE 松开；放开
  If youlet go ofsomeone or something, you stop holding them.
  1. She let go of Mona's hand and took a sip of her drink...
     她放开莫娜的手，抿了一口饮料。
  2. She held the photos with the determined grip of a small child and wouldn't let go.
     她像小孩一样紧紧攥住那些照片，不肯放手。
• PHRASE 放弃，舍弃（感情、态度、控制权）
  If youlet go ofa feeling, attitude, or the control that you have over something, you accept that you should give it up or that it should no longer influence you.
  1. In therapy, she began to let go of her obsession with Mike...
     在心理治疗中，她开始逐渐放下对麦克的痴迷。
  2. The work should focus on helping parents to let go of their children.
     工作应以协助父母放松对子女的管教为重点。
• PHRASE 放走；释放；让…逃走
  If youletsomeone or somethinggo, you allow them to leave or escape.
  1. They held him for three hours and they let him go...
     他们扣留了他3个小时后放走了他。
  2. I'm quite happy really to net a fish and then let it go.
     网到鱼后又把它放生，我挺开心的。
• PHRASE 解雇；解聘；让…离职
  When someone leaves a job, either because they are told to or because they want to, the employer sometimes says that they arelettingthat persongo.
  1. I've assured him I have no plans to let him go...
     我向他保证，我绝对没打算让他走人。
  2. Peterson was let go after less than two years.
     不到两年彼得森就被解雇了。
• PHRASE 不予理会；不予追究
  If someone says or does something that you think is annoying or stupid and youlet it go, you do not react to it or say anything about it.
  1. Let it go, he thought. He didn't feel like arguing.
     管它呢，他想。他并不想争吵。
• PHRASE 放松；随心所欲
  If youlet yourself go, you relax and behave much more freely than usual.
  1. Stop worrying about what you're feeling. Let yourself go.
     不要总想着自己是什么感觉。放轻松点。
• PHRASE 不修边幅；不注意仪表
  If someonelets themselves go, they pay less attention to themselves or their appearance than they used to, so that they look untidy or unattractive.
  1. If you have let yourself go, you should consider doing something about it for the sake of your health.
     你以前要是对自己不管不顾，现在应该为了自己的健康着想而改变一下。
• PHRASE (使自己)陷入，卷入，招惹（麻烦等）
  If you say that you did not know what you wereletting yourself in forwhen you decided to do something, you mean you did not realize how difficult, unpleasant, or expensive it was going to be.
  1. He got the impression that Miss Hawes had no idea of what she was letting herself in for...
     他觉得霍斯小姐根本不知道自己会惹来什么麻烦。
  2. I realized I'd let myself in for something from which there was no turning back.
     我意识到自己陷入了没有退路的境地。
• PHRASE 告知；告诉；使知情
  If youletsomeoneknowsomething, you tell them about it or make sure that they know about it.
  1. They want to let them know that they are safe...
     他们想让他们知道他们安全无事。
  2. If you do want to go, please let me know.
     如果你真想去的话就请告诉我。
• PHRASE 泄露；无意中吐露
  If youlet drop,let fall, orlet slipinformation, you reveal it casually or by accident, during a conversation about something else.
  1. How could she know about that? He'd certainly never let drop any hint...
     她是怎么知道的？他绝对没有走漏半点风声。
  2. He might have let something slip in a moment of weakness.
     他可能一时大意说漏了嘴。
• PHRASE 放任；给予完全的自由
  If you say that someone hasbeen let loosein a place or situation, you mean that they have been given complete freedom to do what they like in that place or situation, and you suggest that this may be risky.
  1. She has all the glee of a little girl let loose in a sweetie shop...
     她像糖果店里无人管束的小女孩那样兴高采烈。
  2. Trainees go through a four-hour lesson before they are let loose on the controls.
     受训人员须上4小时的课才能自由进行操作。
• PHRASE （常指地）发（声），讲（话）
  If someonelets loosea sound or remark, they make it, often suddenly.
  1. He let loose a long, deep sigh...
     他突然喟然长叹了一声。
  2. Hill let loose a torrent of abuse against those who prosecuted his case.
     希尔对控告他的人破口大骂起来。
• tolet fly→ see:fly
• PHRASAL VERB 使美中不足；使差强人意；使不理想
  If somethingletsyoudown, it is the reason you are not as successful as you could have been.
  1. Many believe it was his shyness and insecurity which let him down...
     很多人认为是他的腼腆和缺乏安全感拖了他的后腿。
  2. Sadly, the film is let down by an excessively simple plot.
     遗憾的是，过于简单的情节使得这部电影差强人意。
• PHRASAL VERB 给（轮胎等）放气
  If youlet downsomething such as a tyre, you allow air to escape from it.
  1. I let the tyres down on his car...
     我把他的汽车轮胎放了气。
  2. Remove wheelnuts, let down tyre, put on spare.
     拧下车轮螺母，放掉车胎的气，换上备用胎。

英英释义

noun

• a serve that strikes the net before falling into the receiver's court
  Synonym:net ball

verb

• cause to move
  1. He got his squad on the ball
  2. This let me in for a big surprise
  3. He got a girl into trouble
  Synonym:gethave
• leave unchanged
  1. let it be
• actively cause something to happen
  1. I let it be known that I was not interested
• consent to, give permission
  1. She permitted her son to visit her estranged husband
  2. I won't let the police search her basement
  3. I cannot allow you to see your exam
  Synonym:permitallowcountenance
• grant use or occupation of under a term of contract
  1. I am leasing my country estate to some foreigners
  Synonym:leaserent
• make it possible through a specific action or lack of action for something to happen
  1. This permits the water to rush in
  2. This sealed door won't allow the water come into the basement
  3. This will permit the rain to run off
  Synonym:allowpermit

双语例句

• She has all the glee of a little girl let loose in a sweetie shop
  她像糖果店里无人管束的小女孩那样兴高采烈。
• I love sweets but Mum doesn't let me have them very often
  我爱吃糖，可妈妈不让我常吃。
• He let loose a long, deep sigh
  他突然喟然长叹了一声。
• Let me take your coat
  我来帮您拿外套。
• People said we were interfering with nature, and that we should just let the animals die
  人们说我们是在干涉自然界，还说我们应该任由动物死去。
• She is thinking of letting her house to an American serviceman
  她正考虑把房子租给一个美国军人。
• Let it go, he thought. He didn't feel like arguing.
  管它呢，他想。他并不想争吵。
• I let the tyres down on his car
  我把他的汽车轮胎放了气。
• Now, let's see. Where did I leave my bag?
  嗯，我想想。我把包放哪儿了？
• They want to let them know that they are safe
  他们想让他们知道他们安全无事。