necessary
- adj.必要的;必需的;必然的;无法避免的
- n.必需品
复数： necessaries
ne- 不,非 + cess 行走,撤退 + -ary ...的
necessaryadj.
必需的；必要的
that is needed for a purpose or a reason
It may be necessary to buy a new one.
也许有必要买个新的了。
It doesn't seem necessary for us to meet.
我们似乎没必要见面。
Only use your car when absolutely necessary.
非用不可的时候再用你的汽车。
If necessary , you can contact me at home.
必要的话，我在家时你也可以和我联系。
I'll make the necessary arrangements.
我会做一些必要的安排。
必然的；无法避免的
that must exist or happen and cannot be avoided
This is a necessary consequence of progress.
这是发展的必然后果。
a thing that is bad or that you do not like but which you must accept for a particular reason
necessary
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1
ADJ-GRADED 必要的;必需的
Something that is necessary is needed in order for something else to happen.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。
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2
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.Wastage was no doubt a necessary consequence of war...
巨大的损耗无疑是战争的必然结果。
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3
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....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
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4
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.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。
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5
注意该词的拼写。
B
noun
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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
- Synonym: necessity essential requirement requisite
adj
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1
- unavoidably determined by prior circumstances
- the necessary consequences of one's actions
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2
- absolutely essential
数据来源：WordNet
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They 've been deprived of the fuel necessary to heat their homes .
他们没法得到家里取暖所必需的燃料。
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He had the ruthless streak necessary to carry him into the Cabinet
他具有进入内阁所必需的冷酷性格。
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It was concluded that the level of change necessary would be low .
结论是，需要作出的变更程度很低。
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If necessary , you can contact me at home .
必要的话，我在家时你也可以和我联系。
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If necessary I can come at once .
如果有必要，我可以马上来。
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I can take the car if necessary .
如果必要的话，我可以乘汽车去。
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No previous experience is necessary for this job .
这一工作无需相关的经验。
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A radical overhaul of the tax system is necessary .
有必要彻底改革税制。
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Some adjustment of the lens may be necessary .
可能需要调整一下镜头。
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Only use your car when absolutely necessary .
非用不可的时候再用你的汽车。
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They would take any action deemed necessary .
他们会采取认为必要的任何行动。
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Hospital admission is not necessary in most cases .
大多数情况下，病人无须住院。
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The report concluded that no substantive changes were necessary .
报告的结论是，无须作任何重大变更。
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It might be necessary to make a few slight modifications to the design .
也许有必要对这个设计稍作几处修改。
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We are willing to make any concessions necessary to this end .
为达到此目的我们愿作出任何必要的让步。
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We are still looking for someone who combines all the necessary qualities .
我们仍在寻觅兼备所有必要才能的人选。
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I 'll make the necessary arrangements .
我会做一些必要的安排。
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It 's reassuring that we 've got the money if necessary .
我们有了应急的钱，这就不必担心了。
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It is necessary to examine how the proposals can be carried out .
有必要调查一下怎样才能实施这些方案。
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Exporting is necessary for our economic survival .
必须有出口，才能维持我们的经济。
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This is a necessary consequence of progress .
这是发展的必然后果。
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Repeat the dose after 12 hours if necessary .
如果需要，12小时后再服一剂。
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I do not wish to complicate the task more than is necessary .
我不想使这项任务不必要地复杂化。
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Repairs are necessary to strengthen the bridge .
这座桥需要加固。
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I couldn 't enter the country because I didn 't have all the necessary documentation .
我不能入境是因为我证明文件不齐备。
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It was necessary to discover the truth or otherwise of these statements .
有必要查证这些说法的真实性或虚假性。
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The government , when necessary , has recourse to the armed forces .
政府在必要时可以动用军队。
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Praise them when necessary , but don 't lay it on too thick .
必要时要表扬他们，但不能言过其实。
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Some forethought and preparation is necessary before you embark on the project .
你着手进行这个项目之前必须有所考虑，有所准备。
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No advance booking is necessary .
无须提前订票。
普通用词，多指由客观因素决定的，是必不可少的。
Water is necessary for life.
水是生命不可或缺的。
It is necessary to perform an operation on him.
必须对他实施手术。
It is not necessary to wear a business suit.
不一定要穿商务套装。
If necessary, we can always change the date of our trip.
必要的话，我们随时可以改变旅行的日期。
指由法律、上级命令等规定或强制的。
compulsory circulation/education/insuranc
强制流通/义务教育/强制保险
Questions 1-6 are compulsory.
1至6题为必答题。
Is military service compulsory in your country?
你们国家实行义务兵役制吗？
Swimming is compulsory at their school.
在他们学校，游泳是必修课。
Many young men in that country tried to get away from compulsory military conscription.
那个国家的很多年轻人试图逃避强制征兵的政策。
- 习语
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