简明英汉词典

 let
[let]
vt.
假设, 出租, 允许, 排放, 让...进入(或通过), 妨碍
vi.
出租, (工程等)被承包
n.
出租屋, 障碍

基本词义

 LET
=Linear Energy Transfer 能量线性传递

美国传统词典[双解]

 let
let 1
AHD:[lμt]
D.J.[let]
K.K.[lWt]
v.（动词）
let， let.ting， lets
v.tr.（及物动词）

(1)

 To give permission or opportunity to; allow:
允许，让：允许或给予机会；允许：
I let them borrow the car. The inheritance let us finally buy a house.See Usage Note at leave 1
我允许他们借小车。遗产最终使我们得以购买一座房子参见 leave1

(2)

 To cause to; make:
让；使：
Let the news be known.
公开消息

(3)

 Used as an auxiliary in the imperative to express a command, request, or proposal:
作为助动词用于祈使句中，表示命令、请求或者建议：
Let's finish the job! Let x equal y.
让我们把工作干完！设X等于Y

(4)

 Used as an auxiliary in the imperative to express a warning or threat:
作为助动词用于祈使句中，表示警告或威胁：
Just let her try!
就让她试试吧！

(5)

 To permit to enter, proceed, or depart:
允许：允许进入、前进或出发：
let the dog in.
让狗进来

(6)

 To release from or as if from confinement:
释放，放出：从监禁中或好象从监禁中放出：
let the air out of the balloon; let out a yelp.
释放气球中的空气；发出尖声急叫

(7)

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

(8)

 To award, especially after bids have been submitted:
把…承包出去：尤指招标之后把…承包出去给：
let the construction job to a new firm.
把这个建筑项目承包给一个新公司
v.intr.（不及物动词）

(1)

 To become rented or leased.
被出租，被租用

(2)

 To be or become assigned, as to a contractor.
承包：把…承包给，如给承包商

常用词组

 let down

(1)

 To cause to come down gradually; lower:
放下，降下：使其逐渐下来；降低：
let down the sails.
放下船帆

(2)

 To withdraw support from; forsake.
从…撤回支持；放弃

(3)

 To fail to meet the expectations of; disappoint.
使失望：没有达到所期望的；使沮丧

let on

(1)

 To allow to be known; admit:
宣扬；承认：
Don't let on that you know me.
不要让人知道你认识我

(2)

 To pretend.
假装

let out

(1)

 To come to a close; end:
终止；结束：
School let out early. The play let out at 11 p.m.
学校放学早。话剧晚上 11点结束

(2)

 To make known; reveal:
使知道；泄露：
Who let that story out?
是谁泄露了消息?

(3)

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

let up

(1)

 To slow down; diminish:
放慢；减缓：
didn't let up in their efforts.
他们没有松劲

(2)

 To come to a stop; cease:
停止；暂停：
The rain let up.
雨停下来了

习惯用语

 let alone
Not to mention; much less:
更不用提；更别说：
“Their ancestors had been dirt poor and never saw royalty, let alone hung around with them”(Garrison Keillor)
“他们的祖先穷得要命，从来没有见过王族成员，更不用说和他们在一起了”(加里森·谢勒)

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

let off on【非正式用语】
To cause to diminish, as in pressure; ease up on:
降低，如压力；缓和：
Let off on the gas so that we do not exceed the speed limit.
减小油门以防止超过限速

let (one's) hair down
To drop one's reserve or inhibitions.
消除某人的拘谨或压抑

let up on
To be or become more lenient with:
较宽容地对待：
Why don't you let up on the poor child?
你为什么不能较宽容地对待这个可怜的孩子呢?

语源

(1)

 Middle English leten
中古英语 leten

(2)

 from Old English l?n * see l?-
源自 古英语 l?n *参见 l?-

基本词义

 let
let 2
AHD:[lμt]
D.J.[let]
K.K.[lWt]
n.（名词）

(1)

 Something that hinders; an obstacle:
障碍物；阻碍：
free to investigate without let or hindrance.
毫无阻碍地自由调查

(2)

 Sports An invalid stroke in tennis and other net games that must be repeated.
【体育运动】 触网重发：网球或其他网类球中必须重发的无效发球
v.tr.（及物动词）
let.ted或 let let.ting， lets【古语】
To hinder or obstruct.
阻止或妨碍

语源

(1)

 Middle English lette
中古英语 lette

(2)

 from letten [to hinder]
源自 letten [阻止]

(3)

 from Old English lettan * see l?-
源自 古英语 lettan *参见 l?-

现代英汉词典

 let 1
[let]
vt., vi.
let, letting

(1)

 允许，让
My mother wouldn't let me go to the film.
我妈妈不会让我去看电影的。

(2)

 放开；释放
Let each man decide for himself.
让每个人自己决定。

(3)

 出租
to let a house
出租房子

(4)

 假设

习惯用语

 let alone
更不用说
He hasn't enough money for food, let alone amusements.
他连吃饭钱都不够，就更不用说玩儿的钱了。

let blood
放血

let's
（表示建议或命令）
Let's go swimming on Sunday.
我们星期日去游泳吧！
Come on Mary, let's dance!
来吧！玛丽，我们来跳舞吧！

词性变化

 let
n.

(1)

 出租

(2)

 出租的房子

常用词组

 let down

(1)

 加长

(2)

 扫（某人的）兴；失约

(3)

 给轮胎放气

(4)

 let one's hair down 无拘无束；尽情享乐

let go

(1)

 放开，松手

(2)

 （常与of连用）放弃

let in

(1)

 让…进来，放…进来

(2)

 （与for连用）使卷入，使陷入（麻烦）

(3)

 （常与on连用）让…知情

let off

(1)

 放（炮），投放（炸弹）

(2)

 排放出（气体、液体）

(3)

 允许下车，允许下船，允许下飞机

(4)

 （与with连用）宽恕；赦免；从宽处理

let on
泄漏（秘密)

let out

(1)

 加宽，放宽（衣服）

(2)

 出租（车、马等）

let up

(1)

 放松

(2)

 减弱，停止

基本词义

 let 2
[let]
n.
〈网球〉触网重发

现代英汉综合大辞典

 let
[let]
vt.
阻碍, 防守

词性变化

 let
n.

(1)

 [古] 障碍, 阻碍

(2)

 (网球等)球触网
without let or hindrance
毫无障碍
service let
重发球

基本词义

 LET

(1)

 =Linear Energy Transfer 能量线性传递;

(2)

 Logical Equipment Table 逻辑设备表

用法词典

 let
中古英语leten<古英语l?tan留在后

参考词汇

(1)

 let,allow,permit,grant这组动词都有“允许”或“让”的意思。

(2)

 let 是个普通词，常要求复合宾语，在不定式作宾语补足语时，总省去不定式符号to，有时在一定的上下文中可省去宾语补足语：let, allow这两个动词都有“让”或“允许”的意思，仔细研究后可以看到许多情况下，这两个词并不能通用。let 所表示的“允许”含有“不阻止”(notto prevent)的意思
Let's go into the garage and have a look at it.
咱们到汽车修配厂去看看吧。
She said her future husband would not let her make another film.
她说她的未婚夫不会让她再拍电影了。(此句用would not let,意思是“阻止”)
When the bull got close to him, he clumsily stepped aside to let it pass.
当公牛接近了他时，他笨拙地向一旁一闪，把公牛让了过去。
Then he sits and barks until someone lets him out.
然后它坐着吠叫，直到有人把它放出去为止。
The third baseman let the ball roll between his feet.
第三名垒手让球从他的两只脚之间滚了过去。

(3)

 而allow所表示的“允许”含有“容忍”(forbearance of prohibition)的意思
Please allow me to introduce Mr Brown to you.
请允许我把布朗先生向你介绍一下。
Now we are not allowed to touch it.
现在是不让我们碰一碰它的。

(4)

 注：let somebody do something(让某人做某事)作宾语补足语的不定式省去to，而allow somebody to do something(让某人做某事)作宾语补足语的不定式带to。allow与permit也可以用于allow(permit)somebody to do something的句子结构， 但也可以要求简单宾语或表示行为的名词作宾语。这三个词都能表示“没能阻止”或“不去阻止”，但是let并不包含allow和permit所共有的这层含义：有能力、有权威不去禁止或不去防止某事，有时表示由于笨拙疏忽而放过去
The teacher allows too much noise in the classroom.
那位老师听任教室内有过分的嘈杂声。
He should have known that the police would never allow this sort of thing.
他应该知道，警察是不会允许这种事情的。
The dogs have greater freedom too, for they are allowed to wander outside their enclosure.
那些狗也有了较大的自由，因为允许它们在栅栏外面到处跑跑。

(5)

 而permit又不包含allow的这样一层含义：克制着自己不去禁止，而allow却不包含permit的这样的含义：同意或者默许
We do not allow (or permit) gambling.
我们不允许赌博。

(6)

 grant 所表示的“允许”包含这样的意思：上级就下级的要求，把自认为是一种恩惠或权利给予别人
He requested that the premier grant him an internview.
他要求那位总理接见他一次。
Permission was granted and a policeman accompanied him to a call-box.
获得了许可后，一名警察陪他来到公用电话亭。
…composed of men of the same nationality or who spoke a common language
……由同一民族的人或操同一语言的人组成的

英文相关词典

 let
admit    allow    charter    consent    contract    grant    hire out    lease    leave    permit    rent    

[七国语言]英汉公共大词典

 let
让

美国传统词典

 let
let 1
AHD:[lμt]
D.J.[let]
K.K.[lWt]
v.
let, let.ting, lets
v.tr.

(1)

 To give permission or opportunity to; allow:
I let them borrow the car. The inheritance let us finally buy a house.See Usage Note at leave 1

(2)

 To cause to; make:
Let the news be known.

(3)

 Used as an auxiliary in the imperative to express a command, request, or proposal:
Let's finish the job! Let x equal y.

(4)

 Used as an auxiliary in the imperative to express a warning or threat:
Just let her try!

(5)

 To permit to enter, proceed, or depart:
let the dog in.

(6)

 To release from or as if from confinement:
let the air out of the balloon; let out a yelp.

(7)

 To rent or lease:
let rooms.

(8)

 To award, especially after bids have been submitted:
let the construction job to a new firm.
v.intr.

(1)

 To become rented or leased.

(2)

 To be or become assigned, as to a contractor.

常用词组

 let down

(1)

 To cause to come down gradually; lower:
let down the sails.

(2)

 To withdraw support from; forsake.

(3)

 To fail to meet the expectations of; disappoint.

let on

(1)

 To allow to be known; admit:
Don't let on that you know me.

(2)

 To pretend.

let out

(1)

 To come to a close; end:
School let out early. The play let out at 11 p.m.

(2)

 To make known; reveal:
Who let that story out?

(3)

 To increase the size of (a garment, for example):
let out a coat.

let up

(1)

 To slow down; diminish:
didn't let up in their efforts.

(2)

 To come to a stop; cease:
The rain let up.

习惯用语

 let alone
Not to mention; much less:
“Their ancestors had been dirt poor and never saw royalty, let alone hung around with them”(Garrison Keillor)

let go
To cease to employ; dismiss:
had to let 20 workers go.

let off onInformal
To cause to diminish, as in pressure; ease up on:
Let off on the gas so that we do not exceed the speed limit.

let (one's) hair down
To drop one's reserve or inhibitions.

let up on
To be or become more lenient with:
Why don't you let up on the poor child?

语源

(1)

 Middle English leten

(2)

 from Old English l?n * see l?-

基本词义

 let
let 2
AHD:[lμt]
D.J.[let]
K.K.[lWt]
n.

(1)

 Something that hinders; an obstacle:
free to investigate without let or hindrance.

(2)

 Sports An invalid stroke in tennis and other net games that must be repeated.
v.tr.
let.tedor let let.ting, letsArchaic
To hinder or obstruct.

语源

(1)

 Middle English lette

(2)

 from letten [to hinder]

(3)

 from Old English lettan * see l?-

朗文英汉综合电脑词典

 LET
= LETter,字母，信; = Lincoln Experimental Terminal, 林肯试验终端; = Logical Equipment Table, 逻辑设备表

英汉法学大词典

 let
v.出租 ,允许 ,招租

英汉航海大词典

 let
vt.向某人发包订约

英汉环境大词典

 let
n.直线能量转移

英汉化学大词典

 let
vt.让,放,出租

英汉海运大词典

 let
令，使流出，让…进入，使，让，出租，泄，放

基本词义

 let
让，令，出租放，使流出，让…进入

基本词义

 let
使，让出租泄，放

英汉经贸大词典

 let
n.让;vt.向某人发包订约

英汉计算机大词典

 let
vt.让(放,出租

航空英语缩写词典

 LET
Letter 信,字母

基本词义

 LET
Letter 信,字母

英汉医学大词典

 let
n.线性能量传递,线性能量转移

英汉中医大词典

 let
n.让,允许,流出

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