let

1. V-T If you let something happen, you allow it to happen without doing anything to stop or prevent it. 任由

People said we were interfering with nature, and that we should just let the animals die. 人们说我们在干涉大自然，还说我们应该任由那些动物去死。

I can't let myself be distracted by those things. 我不能任由自己被那些东西分散注意力。

2. V-T If you let someone do something, you give them your permission to do it. 允许

I love sweets but Mum doesn't let me have them very often. 我爱吃糖果，但是妈妈不允许我常吃。

3. V-T If you let someone 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. 允许 (进入、离开、通过等)

I had to let them into the building because they had lost their keys. 我不得不允许他们进楼，因为他们丢了钥匙。

4. V-T You use let me when you are introducing something you want to say. 让我 (引出要说的内容)[only imper]

Let me tell you what I saw last night. 让我告诉你昨晚我见到的事。

Let me explain why. 让我来解释为什么。

5. V-T You use let me when you are offering politely to do something. 让我 (表示礼貌地提出帮忙)[only imper] [礼貌]

Let me take your coat. 让我帮您拿外套吧。

6. V-T You say let's or, in more formal English, let us, to direct the attention of the people you are talking to toward the subject that you want to consider next. 让我们 (引起人们对将谈论的事物的注意)[only imper]

Let us look at these views in more detail. 让我们更详细地看待这些观点。

7. V-T You say let's or, 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. 让我们 (表示提议或同意)[only imper]

I'm bored. Let's go home. 我无聊着呢。让我们回家吧。

8. V-T Someone in authority, such as a teacher, can use let's or, in more formal English, let us, in order to give a polite instruction to another person or group of people. 我们…吧 (表示礼貌地下达指令)[only imper] [礼貌]

Let's have some quiet, please. 我们安静点吧。

9. V-T You can use let when you are saying what you think someone should do, usually when they are behaving in a way that you think is unreasonable or wrong. 让 (表示批评和要求)[only imper]

Let him get his own cup of tea. 让他自己去倒茶。

10. V-T If you let your house or land to someone, you allow them to use it in exchange for money that they pay you regularly. 出租[英国英语]

She let rooms to university students. 她曾把房间租给大学生。

11. N the act of letting property or accommodation 出租[英国英语]

the majority of new lets are covered by the rent regulations

12. PHRASAL VERB Let out means the same as . 同let

I couldn't sell the apartment, so I let it out. 我不能把公寓卖掉，因此把它出租了。

13. PHRASE Let alone is 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. 更不用说[强调]

It is incredible that the 12-year-old managed to even reach the pedals, let alone drive the car. 这个12岁的小孩能够得着踏板都令人难以置信，更不用说开汽车了。

14. PHRASE If you let go of someone or something, you stop holding them. 放开某人/某物

She let go of Mona's hand and took a sip of her drink. 她放开莫娜的手，轻轻呷了一口她的饮料。

15. PHRASE If you let someone or something go, you allow them to leave or escape. 放走某人

They held him for three hours and they let him go. 他们扣押了他3个小时才放走他。

16. PHRASE When someone leaves a job, either because they are told to or because they want to, the employer sometimes says that they are letting that person go. 解雇某人[商业]

I've assured him I have no plans to let him go. 我已经向他保证我不打算解雇他。

17. PHRASE If you say that you did not know what you were letting yourself in for when you decided to do something, you mean you did not realize how difficult, unpleasant, or expensive it was going to be. 给自己惹上 (麻烦)

He got the impression that Miss Hawes had no idea of what she was letting herself in for. 他感觉霍伊斯小姐并不知道她给自己惹了多大的麻烦。

18. PHRASE If you let someone know something, you tell them about it or make sure that they know about it. 让某人知道

They want to let them know that they are safe. 他们想让他们知道，他们很安全。

19. to let fly→see fly

20. to let your hair down→see hair

21.  to let someone off the hook→see hook

22.  to let it be known→see known