allow, let, permit, leave, authorize

allow, let

• he allowed me to take his dictionary.
  他允許我拿走他的詞典。
• will you allow me to use your bike？
  我可以用你的自行車嗎？

• please let me walk with you（＝please allow me to walk with you．）
  我（請允許我）跟你一起走。

名詞 let:

1. the most brutal terrorist group active in Kashmir; fights against India with the goal of restoring Islamic rule of India
   同義詞：Lashkar-e-Taiba, Lashkar-e-Toiba, Lashkar-e-Tayyiba, Army of the Pure, Army of the Righteous
2. a serve that strikes the net before falling into the receiver's court; the ball must be served again
   同義詞：net ball

動詞 let:

1. make it possible through a specific action or lack of action for something to happen
   同義詞：allow, permit
2. actively cause something to happen
3. consent to, give permission
   同義詞：permit, allow, countenance
4. cause to move; cause to be in a certain position or condition
   同義詞：get, have
5. leave unchanged
6. grant use or occupation of under a term of contract
   同義詞：lease, rent

1. I don't agree with all you say, but I'll let it go at that.
   我并不完全同意你說的話，但我不再多說了。
2. Let me see where did I leave my hat?
   讓我想想看－－我把帽子落在哪兒了？
3. He let a week go by before answering the letter.
   他一周以后才回信。
4. She lets her children play in the garden.
   她讓孩子們在花園里玩。

let

v.（動詞）
let,let.ting,lets
v.tr.（及物動詞）
To give permission or opportunity to; allow:
允許，讓：允許或給予機會；允許：
例句：
I let them borrow the car. The inheritance let us finally buy a house.See Usage Note at leave
我允許他們借小車。遺產(chǎn)最終使我們得以購買一座房子參見 leave

To cause to; make:
讓；使：
例句：
Let the news be known.
公開消息

Used as an auxiliary in the imperative to express a command, request, or proposal:
作為助動詞用于祈使句中，表示命令、請求或者建議：
例句：
Let`s finish the job! Let x equal y.
讓我們把工作干完！設(shè)X等于Y

Used as an auxiliary in the imperative to express a warning or threat:
作為助動詞用于祈使句中，表示警告或威脅：
例句：
Just let her try!
就讓她試試吧！

To permit to enter, proceed, or depart:
允許：允許進入、前進或出發(fā)：
例句：
let the dog in.
讓狗進來

To release from or as if from confinement:
釋放，放出：從監(jiān)禁中或好象從監(jiān)禁中放出：
例句：
let the air out of the balloon; let out a yelp.
釋放氣球中的空氣；發(fā)出尖聲急叫

To rent or lease:
租借，出租：
例句：
let rooms.
出租房間

To award, especially after bids have been submitted:
把…承包出去：尤指招標(biāo)之后把…承包出去給：
例句：
let the construction job to a new firm.
把這個建筑項目承包給一個新公司

v.intr.（不及物動詞）
To become rented or leased.
被出租，被租用
To be or become assigned, as to a contractor.
承包：把…承包給，如給承包商

<常用詞組>let down
To cause to come down gradually; lower:
放下，降下：使其逐漸下來；降低：
例句：
let down the sails.
放下船帆

To withdraw support from; forsake.
從…撤回支持；放棄
To fail to meet the expectations of; disappoint.
使失望：沒有達到所期望的；使沮喪
let on
To allow to be known; admit:
宣揚；承認：
例句：
Don`t let on that you know me.
不要讓人知道你認識我

To pretend.
假裝
let out
To come to a close; end:
終止；結(jié)束：
例句：
School let out early. The play let out at p.m.
學(xué)校放學(xué)早。話劇晚上 點結(jié)束

To make known; reveal:
使知道；泄露：
例句：
Who let that story outô
是誰泄露了消息ô

To increase the size of (a garment, for example):
放大（衣服）：增大（例如衣服的）尺寸：
例句：
let out a coat.
放大一件外衣

let up
To slow down; diminish:
放慢；減緩：
例句：
didn`t let up in their efforts.
他們沒有松勁

To come to a stop; cease:
停止；暫停：
例句：
The rain let up.
雨停下來了

<習(xí)慣用語>let alone
Not to mention; much less:
更不用提；更別說：
例句：
.Their ancestors had been dirt poor and never saw royalty, let alone hung around with them.(Garrison Keillor)
.他們的祖先窮得要命，從來沒有見過王族成員，更不用說和他們在一起了.(加里森·謝勒)

let go
To cease to employ; dismiss:
不再雇用；解雇：
例句：
had to let 20 workers go.
必須解雇二十名工人

let off on【非正式用語】
To cause to diminish, as in pressure; ease up on:
降低，如壓力；緩和：
例句：
Let off on the gas so that we do not exceed the speed limit.
減小油門以防止超過限速

let (one`s) hair down
To drop one`s reserve or inhibitions.
消除某人的拘謹(jǐn)或壓抑
let up on
To be or become more lenient with:
較寬容地對待：
例句：
Why don`t you let up on the poor childô
你為什么不能較寬容地對待這個可憐的孩子呢ô

來源：
Middle English leten
中古英語 leten
from Old English lôtan * see lô-
源自 古英語 lôtan *參見 lô-

let
let 2

n.（名詞）
Something that hinders; an obstacle:
障礙物；阻礙：
例句：
free to investigate without let or hindrance.
毫無阻礙地自由調(diào)查

Sports An invalid stroke in tennis and other net games that must be repeated.
【體育運動】 觸網(wǎng)重發(fā)：網(wǎng)球或其他網(wǎng)類球中必須重發(fā)的無效發(fā)球
v.tr.（及物動詞）
let.ted 或 let let.ting,lets 【古語】
To hinder or obstruct.
阻止或妨礙

來源：
Middle English lette
中古英語 lette
from letten [to hinder]
源自 letten [阻止]
from Old English lettan * see lô-
源自 古英語 lettan *參見 lô-