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under是什么意思

under

英[ˈʌndə(r)] 美[ˈʌndər]

prep. 在…下面，受…影响，由…控制，在…过程中，由…造成，根据，按照，少于，不足，用，以；
adv. 在下面，在水下，少/小于，在昏迷中；
adj. 下面的，较低的；

同义词

adv.
under的同义词之：在下面,在下方
lower below beneath
under的同义词之：其他释义
beneath below nether lower underneath through

反义词

prep.
under的反义词之：在...下面
over
under的反义词之：其他释义
over

同义词解析

以下这些前置词均可表示位置"在……下面" 的意思
below：指位置低于某物或在某物下方，但不一定在正下方，所指范围较宽。
beneath：书面用词，指紧挨……之下，其反义词是on。
under：普通用词，与over相对，指在某物的正下方，含垂直在下的意思。
underneath：书面口语均用，也常与beneath和under换用，但更含遮蔽的意味。

词组

under way Dutch
having started and making progress 在进行中
out from under【非正式用语】
Having gotten free of worries or difficulties 免于忧虑或困难

柯林斯高阶英汉双解学习词典释义

PREP

在…下面；在…下方；在…底下

If a person or thing is under something, they are at a lower level than that thing, and may be covered or hidden by it.
例句
They found a labyrinth of tunnels under the ground. 他们发现了一处迷宫似的地道。 ...swimming in the pool or lying under an umbrella... 在泳池里游泳或躺在阳伞底下
PREP

在（水面）之下；在（水）里

In a place such as a sea, river, or swimming pool, if someone or something is under the water, they are fully in the water and covered by it.
例句
They said he'd been held under the water and drowned... 他们说他被按到水里淹死了。 Goldfish were swimming lazily in a group just under the surface. 金鱼聚在一起贴着水面懒洋洋地游着。
PREP

经由…的底下

If you go under something, you move from one side to the other of something that is at a higher level than you.
例句
He went under a brick arch... 他穿过一个砖砌的拱门。 A river boat passed under the bridge. 一条内河船从桥下经过。
PREP

在（尤指一层衣服）的里面（或底下)

Something that is under a layer of something, especially clothing, is covered by that layer.
例句
I was wearing two sweaters under the green army jacket... 我在绿军装里套了两件毛线衫。 He had no shirt on under his thin jumper... 他在薄套头衫里面没有穿衬衣。
PREP

受…影响；经历

You can use under before a noun to indicate that a person or thing is being affected by something or is going through a particular process.
例句
...fishermen whose livelihoods are under threat... 生计受到威胁的渔夫 I'm rarely under pressure and my co-workers are always nice to me... 我很少感受到压力，同事们一直对我很好。
PREP

在（…情况或条件）下

If something happens under particular circumstances or conditions, it happens when those circumstances or conditions exist.
例句
His best friend was killed by police under extremely questionable circumstances... 他最好的朋友在极其可疑的情况下被警察打死了。 Under normal conditions, only about 20 to 40 per cent of vitamin E is absorbed... 正常情况下，仅有20%到40%的维生素E会被吸收。
PREP

根据，按照，依照（法律、协定、制度等）

If something happens under a law, agreement, or system, it happens because that law, agreement, or system says that it should happen.
例句
Under law, your employer has the right to hire a temporary worker to replace you... 根据法律规定，你的雇主有权雇用一名临时工来代替你。 We believe an offence was committed under EU regulations... 我们认为根据欧盟有关规定已经构成了犯罪。
PREP

在（…领导）下；在（…当政）期间；在（…统治）之下

If something happens under a particular person or government, it happens when that person or government is in power.
例句
There would be no new taxes under his leadership. 在他主政期间不会增加新税种。 ...the realities of life under a brutal dictatorship... 残暴的独裁统治下的生活现实
PREP

在…指导下(学习)；在…手下(工作)

If you study or work under a particular person, that person teaches you or tells you what to do.
例句
Kiefer was just one of the artists who had studied under Beuys in the early Sixties... 基弗只是60年代早期师从博伊斯的艺术家之一。 General Lewis Hyde had served under General 'Billy' Mitchell... 刘易斯·海德将军曾是“比利”·米切尔将军的部下。
PREP

用（…之名）；以（…的名义）；假借（…之名）

If you do something under a particular name, you use that name instead of your real name.
例句
Were any of your books published under the name Amanda Fairchild?... 你们所出版的书里有署名为阿曼达·费尔柴尔德的吗？ The patient was registered under a false name. 那位患者挂号时用了假名。
PREP

在…之下；在…部分里

You use under to say which section of a list, book, or system something is in.
例句
This study is described under 'General Diseases of the Eye'... “普通眼科疾病”这一部分里对该项研究作了描述。 ...a parental rights order under section 4 of the Family Law Reform Act... 《家庭法改革法案》第4款中有关父母权利的规定
PREP

（年龄或数量）不足，低于，在…以下

If something or someone is under a particular age or amount, they are less than that age or amount.
例句
...jobs for those under 65... 适合65岁以下人群从事的工作 Nearly half of mothers with children under five have a job... 孩子不满5岁的妈妈中近一半有工作。

英汉词典释义

prep.
在…下面, 在…底下; 在（或到、通过）…下面
They lay down under the shade of a tree. 他们躺在一棵树的树阴下。 The village nestles under the hill. 那村庄紧靠在山脚下。 All this happened under his eye. 这一切都发生在他的眼皮底下。 She was carrying her handbag under her armpit when I saw her. 我看到她时, 她腋下夹着手提包。 The old chair suddenly folded up under him. 那张旧椅子让他一坐突然被压垮了。 This field has been laid under grass. 这块地已经长满了草。 The soldiers stood firm under gunfire of the enemy. 士兵在敌人的炮火下不屈不挠。
少于, 低于, 小于, 不足, 比…年轻
His income is under ￡2000 a year. 他每年的收入不到两千英镑。 It is under the original. 这低于原价。 He cannot be under thirty years of age. 他的年龄不会小于三十岁。 It took us under a day. 我们用了不到一天的时间。
在…情况下, 在…过程中
The car is under repairs. 这辆汽车在修理中。 Don't overload your lecture with details that do not bear on the topic under discussion. 讲课时不要过多地谈与本题无关的细节。
在…管辖下; 在…影响下; 由…控制（或管理、经营）
She has three secretaries under her. 她手下有三名秘书。 The army is under the command of General Smith. 这支部队由史密斯将军指挥。 We learned a great deal under her teaching. 在她的教导下我们学到了很多东西。 This falls under the head rhetoric. 这个属于修辞学项目。
使用(某名称), 用或以（某一名字）
He never wrote under his real name. 他从来不用真名实姓写作。 He didn't attend that meeting under the pretext of sickness. 他以生病为借口, 没参加那个会议。
根据…的条款; 根据, 按照（协议、法律或制度）
Under the terms of the agreement, you have to pay a weekly rent. 根据这份协议的条款, 你得支付一周的房租。
在…表面下；由…覆盖着
由…造成；受…影响
在…项下；在（书等中的）某部份
adv.
在下面
在水下
少于；小于；较年轻
在昏迷中；陷入昏迷状态
adj.
较低的；下面的

英英词典释义

Adjective
1. located below or beneath something else;
"nether garments""the under parts of a machine"
2. lower in rank, power, or authority;
"an under secretary"
Adverb
1. down to defeat, death, or ruin;
"their competitors went under"
2. through a range downward;
"children six and under will be admitted free"
3. into unconsciousness;
"this will put the patient under"
4. in or into a state of subordination or subjugation;
"we must keep our disappointment under"
5. below some quantity or limit;
"fifty dollars or under"
6. below the horizon;
"the sun went under"
7. down below;
"get under quickly!"
8. further down;
"see under for further discussion"

行业词典

土木工程：等外材；under-grade wood；适筋梁；under-reinforced beam；
水产：冰下捕鱼；ice fishing 在冰封的江河、湖泊或水库，从凿开的冰孔用地拉网或钓具捕鱼。；
电力：进相能力；under-excitation ability；低电压保护；under-voltage protection；欠电压脱扣器；under-voltage release；