necessary是什么意思

necessary

英[?nes?s?ri] 美[?nes?seri]

adj. 必要的，必然的；
n. 必需品；

同义词

adj.
necessary的同义词之：必要的,必需的
important compelling compulsory needed required essential exigent imperative obligatory urgent
necessary的同义词之：其他释义
needed basic imperious indispensable pressing desired required exigent necessity obligatory important significant compelling vital urgent imperative essential compulsory

反义词

adj.
necessary的反义词之：必要的,必需的
unnecessary needless

同义词解析

以下这些形容词均有"必不可少的，必需的" 的意思
indispensable：语气强，侧重指绝对必要性或不可缺少性。
essential：指对事物本身性质具有决定性的重要性，暗含不可缺少，否则便无法存在。
necessary：最常用词，侧重由客观因素决定的某种需要，强调不可避免，但并非绝不可缺少。
requisite：正式用词，特指为实现某一目的或得到某种结果而应有的需要，有时可与necessary换用。

词组

a necessary evil
something that is undesirable but must be accepted 无法避免的坏事；不得已的事

柯林斯高阶英汉双解学习词典释义

ADJ-GRADED

必要的;必需的

Something that is necessary is needed in order for something else to happen.
例句
I kept the engine running because it might be necessary to leave fast... 我没让发动机熄火，因为也许需要迅速离开。 We will do whatever is necessary to stop them... 我们要采取一切必要措施去阻止他们。
ADJ

(结果或联系)必然的，势必的

A necessary consequence or connection must happen or exist, because of the nature of the things or events involved.
例句
Wastage was no doubt a necessary consequence of war... 巨大的损耗无疑是战争的必然结果。 Scientific work is differentiated from art by its necessary connection with the idea of progress. 科学工作与艺术的区别在于它与人类进步有着必然联系。
N-PLURAL

基本生活必需;必需品

Necessaries are things, such as food or clothing, that you need to have in order to live.
例句
...a small parcel of necessaries tied up in a handkerchief and carried on a stick. 用手绢包好挑在棍子上的一小包生活必需品
PHRASE

如果必要的话

If you say that something will happen if necessary ,when necessary, or where necessary, you mean that it will happen if it is necessary, when it is necessary, or where it is necessary.
例句
If necessary, the airship can stay up there for days to keep out of danger... 必要时，飞艇能在那里停留数天以躲避危险。 The army needs men who are willing to fight, when necessary... 军队需要在必要时愿意投入战斗的军人。

英汉词典释义

adj.
必要的; 必需的
It took me a year to get the necessary materials together. 我花了一年的时间才把所需要的资料组织好。 It is necessary that one should obey the law. 一个人遵守法律是必要的。
必然的; 不可避免的
Because the company was doing more business it was necessary to expand the factory. 由于公司业务的扩大, 扩大工厂是必然的。
迫不得已的，非做不行的，非自愿的，不自由的
n.
必需品
He has enough money to obtain the necessaries of life. 他有足够的钱购买生活必需品
必要物；必要，必须
[用复数]【法律】生活必需品

英英词典释义

Noun
1. anything indispensable;
"food and shelter are necessities of life""the essentials of the good life""allow farmers to buy their requirements under favorable conditions""a place where the requisites of water fuel and fodder can be obtained"
Adjective
1. absolutely essential
2. unavoidably determined by prior circumstances;
"the necessary consequences of one's actions"