necessary
adj. 必要的；必需的；必然的
n. 必需品
n. (Necessary)人名；(英)内塞瑟里
adj.
必要的；强制的；必然的；不可避免的
n.
必需品；
变形
复数：necessaries
双语释义
adj.(形容词)必要的,必需的 essential for a purpose; that cannot be done without or avoided
必然的,不可避免的 that must be; inevitable
英英释义
necessary[ 'nesisəri ]
n.anything indispensable
同义词：necessityessentialrequirementrequisite
adj.
absolutely essential
unavoidably determined by prior circumstances
"the necessary consequences of one's actions"
词汇搭配
用作形容词 (adj.)
～+名词
necessary actions必要措施
necessary apologies必要的道歉
necessary arrangements必要的安排
necessary end必然的结局
necessary equipment必要的装备
necessary information必要的信息
necessary instruments必要的仪器
necessary makeshift必要的权宜之计
necessary restriction必要的限制
necessary result必然的结果
necessary skill必需的技能
necessary sum所需的数目
副词+～
absolutely necessary绝对必要
highly necessary非常必要的
really necessary真的必要
～+介词
necessary for对…是必要的
necessary for health对健康是必要的
necessary to对…是必需的
词组短语
if necessary如果必要的话
necessary for所必需；对…是必要的
necessary condition必要条件，充分必要条件
when necessary在必要的时候
as necessary必要时
absolutely necessary绝对必要
necessary and sufficient condition充要条件；必要且充分的条件
where necessary必要时；需要时；必要地方
sufficient and necessary condition充要条件；充分必要条件
necessary evil n. 无可避免之灾祸
necessary connection必然联系
同近义词辨析
essential, indispensable, necessaryessentiala.表示属于某事物的要素或特征是"主要的，核心的，本质的，必不可少的"。
The essential point is we must do what the contract says.核心的一点是我们必须按照合同的规定去做。
indispensablea.强调客观上是必不可少的，否则就无法维持生命或做不成某一件事。
Warm clothing is indispensable in cold weather.在寒冷的天气里，厚衣服是必不可少的。
necessarya.是一般用语，强调从主观上看是必须的，不可避免的。
requisite, essential, indispensable, necessary这组词都有“必不可少的，必需的”的意思，其区别是：
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。
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。
indispensable语气强，侧重指绝对必要性或不可缺少性。
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。
双语例句
用作形容词(adj.)
She will make necessary arrangements.
她会作好必要的准备。
If necessary, please warehouse the goods.
如有必要，请将该货存入仓库。
The necessary outcome of a war is a fall in production.
战争带来的必然结果就是生产力下降。
权威例句
Minimum Information Necessary for Quantitative Real-Time PCR ExperimentsMinimum Information Necessary for Quantitative Real-Time PCR Experiments
Human papillomavirus is a necessary cause of invasive cervical cancer worldwide.
The Transcription Factor GATA-3 Is Necessary and Sufficient for Th2 Cytokine Gene Expression in CD4 T Cells
Identification and inhibition of the ICE/CED-3 protease necessary for mammalian apoptosis.
Activation of MAP kinase kinase is necessary and sufficient for PC12 differentiation and for transformation of NIH 3T3 cells
Assessing the quality of reports of randomized clinical trials: is blinding necessary?
Pillars Article: The Transcription Factor GATA-3 Is Necessary and Sufficient for Th2 Cytokine Gene Expression in CD4 T Cells. Cell...
The IκB Kinase Complex (IKK) Contains Two Kinase Subunits, IKKα and IKKβ, Necessary for IκB Phosphorylation and NF-κB Activation
The IkappaB kinase complex (IKK) contains two kinase subunits, IKKalpha and IKKbeta, necessary for IkappaB phosphorylation and NF-ka...
necessary
necessary: [14] The original Latin adjective meaning ‘necessary’ was necesse (it was formed with the negative particle ne- from the stem of cēdere ‘yield’, source of English cede, and hence meant etymologically ‘unyielding’). This was subsequently extended to necessārius, and English acquired it via Anglo-Norman *necessarie.=> cede, concede, proceed
necessary (adj.)
late 14c. "needed, required, essential, indispensable," from Old French necessaire "necessary, urgent, compelling" (13c.), and directly from Latin necessarius "unavoidable, indispensable, necessary," from necesse "unavoidable, indispensable," originally "no backing away," from ne- "not" + cedere "to withdraw, go away, yield" (see cede). The root sense is of that from which there is no evasion, that which is inevitable. Necessary house "privy" is from c. 1600. Necessary evil is from 1540s (the original reference was to "woman").
necessary (n.)
mid-14c., "needed, required, or useful things; the necessities of life; actions determined by right or law," perhaps from Old French necessaire (n.) "private parts, genitalia; lavatory," and directly from Latin necessarius (n.), in classical Latin "a relation, relative, kinsman; friend, client, patron;" see necessary (adj.).
1. It is necessary, I think, to head up the chapters.
我认为给每一章都加上个标题是很有必要的。
《21世纪大英汉词典》
2. You can hive off some of the work to us if necessary.
如果必要的话，你可以把部分工作分给我们做。
《21世纪大英汉词典》
3. Constant vigilance is necessary in order to avoid accidents.
为了避免意外事故，必须经常保持警惕。
《新英汉大辞典》
4. Retrenchment will be necessary.
有必要进行紧缩。
www.kfyes.com
5. We consulted the original and made some necessary changes.
我们参照原文作了必要的修改。
《新英汉大辞典》
6. Of course, you should only do this if it is absolutely necessary.
当然，如果这是完全必需的，就只能这样做。
www.ibm.com
7. All that is necessary as well, but it is beyond the scope of this process.
所有这些问题都是必要的，但其并不在此流程的范围之内。
www.ibm.com
8. You want your code to be only as complex as necessary.
您想要您的代码复杂性仅仅是您必需的。
www.ibm.com
9. Do they have the necessary skills to support the solution?
他们有支持这个解决方案的必要技术吗？
www.ibm.com
10. In the meantime, let us study things which are no more. It is necessary to know them, if only for the purpose of avoiding them.
在此期间，让我们研究研究那些已经不存在的东西，认识那些东西是必要的，即使仅仅是为了避开它们。
www.ebigear.com
11. Take care of your car, because you drive the car and you need it every day. The car is necessary for you.
所以好好照顾自己的车，因为车子是你在开，你每天都需要用到车，它是你的必需品。
www.ebigear.com
12. Why is it necessary?
为什么它是必须的?
article.yeeyan.org
13. In order to convert hearers into listeners, you need to know why they should listen to you –and tell them if necessary.
为了把听众转换成倾听者，您需要了解他们为什么需要听您的演讲----如果必要您可以告诉他们。
article.yeeyan.org
14. But beyond what is necessary for these purposes, there will be no invasion, no using of force against or among the people anywhere.
但为了这些目标所必须的之外手段将不会涉及，政府也不会使用强制力量反对或离间任何地方的人民。
article.yeeyan.org
15. But still I wonder whether all the control is necessary.
不过我还是怀疑所有这些控制是否必要。
www.kekenet.com
16. A certain degree of speculation should not only be allowed but also necessary.
一定程度的房地产投机不但应该允许，而且是必要的。
article.yeeyan.org
17. It may not be necessary, as I have suggested, but I take no position on that question.
正如我指出的那样，或许是没有修宪的必要的，但我在此不就这一问题表态。
article.yeeyan.org
18. You can help your children to gain the concept that soil is not just dirt but something necessary for life.
你可以帮助你的孩子获得这样一个概念：土壤不仅仅是“泥土”，而且是生活必需的东西。
www.hjenglish.com
19. So, with this information entered, you have provided all the necessary deployment information, and your deployment configuration should resemble the one shown in Figure 5.
这样，输入这些信息后，会给您提供所有必要的部署信息，而且您的部署配置应该类似于 图5所显示的那样。
www.ibm.com
20. Once you have the necessary information, you can begin with design.
一旦得到了必要的信息，就可以动手设计了。
blog.sina.com.cn
21. Why is this necessary?
为什么是必须的？
blog.sina.com.cn
22. What kind of resources are necessary and in what amount.
何种资源是必需的，以及需要多大的量。
www.ibm.com
23. Do you have the necessary skills?
我具有必要的技能了吗？
article.yeeyan.org
24. There’re some professional teachers and they can guide you to do certain necessary exercise.
那里有一些专业的教师，他们可以指导你做一些必要的练习。
www.hxen.com
25. At IBM, we have built verification and logging directly into our widget classes, so those additional lines of code are not necessary when using our version of the widget classes.
在IBM，我们已经将验证和记录直接构建到窗口小部件类中，所以在使用我们的窗口小部件类版本时，不需要那些额外的代码。
www.ibm.com
26. At IBM, we have built verification and logging directly into our widget classes, so those additional lines of code are not necessary when using our version of the widget classes.
在IBM，我们已经将验证和记录直接构建到窗口小部件类中，所以在使用我们的窗口小部件类版本时，不需要那些额外的代码。
www.ibm.com
27. Are instructions necessary?
指令是否必要？
-- 来源 -- About Face 3交互设计精髓
28. Both of these devices also make use of thumb-boards when text data entry is necessary.
其中设备还采用了拇指板，当需要输入文本时就可以派上用场了。
-- 来源 -- About Face 3交互设计精髓
29. Necessary rooms
必要的房间
-- 来源 -- About Face 3交互设计精髓
30. This is a necessary part of the process and shouldn’t be short-circuited.
这是这个过程的必要部分，不应该缩短。
-- 来源 -- About Face 3交互设计精髓
31. Scrolling of any kind should also be avoided on kiosks except when absolutely necessary.
另外，滚动操作也要尽可能的必要，除非是非常必要。
-- 来源 -- About Face 3交互设计精髓
32. Because market research can help identify an opportunity, it is often the necessary starting point for a design initiative.
市场研究有助于确定市场机会，常常是设计活动必不可少的起点。
-- 来源 -- About Face 3交互设计精髓
33. It is important that both these idioms are available, as the former is necessary to scale the image in proportion, whereas the latter is necessary to fine-tune the shape.
这两种习惯用法都很重要，前者用于按比例调节图像；后者用于精细调节图像形状。
-- 来源 -- About Face 3交互设计精髓
34. The function and behavior of the product must address goals via tasks—typically, as few tasks as absolutely necessary.
产品的功能和行为必须通过一系列任务来达到目标，通常任务尽可能越少越好。
-- 来源 -- About Face 3交互设计精髓
35. Process, patterns, and principles are necessary, but not sufficient, for a successful interaction design project.
对于交互设计项目的成功，过程、模式和原则是必要的，但不是充分的。
-- 来源 -- About Face 3交互设计精髓
36. Rather, it supports a necessary condition—trustworthiness—on the way to a real goal.
而是在达到实际目标的过程中提供了一个必要条件，即信任。
-- 来源 -- About Face 3交互设计精髓
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