necessity
n. 需要；必然性；必需品
n.
必要（性）；（迫切）需要；必需品；自然规律
变形
复数：necessities
双语释义
n.(名词)[U]必要(性); (迫切)需要 circumstances that force one to do sth; state of being necessary
[C]必需品 necessary thing
[S]自然规律 natural law that is seen as governing human action
英英释义
necessity[ ni'sesəti, nə- ]
n.
the condition of being essential or indispensable
anything indispensable
同义词：essentialrequirementrequisitenecessary
词汇搭配
用作名词 (n.)
动词+～
accept〔deny, ignore, see〕 the necessity of承认〔否认,忽视,看到〕…的必要性
buy the -ties of life购买生活必需品
feel the necessity of感到有…的必要
meet necessity满足需要
provide -ties of existence提供生活必需品
realize the necessity of意识到…的必要性
relieve a necessity解决某一需要
supply -ties提供必需品
形容词+～
absolute necessity绝对必要
basic〔physiological, urgent〕 necessity基本〔生理,迫切〕需要
daily -ties日用品
economic〔political〕 necessity经济〔政治〕上的需要
historical〔logical〕 necessity历史〔逻辑〕的必然性
household -ties家庭必需品
military -ties军需品
moral necessity伦理〔道德〕的需要
scientific necessity科学上的需要,符合科学的必然性
介词+～
by necessity不得已
from necessity由于必要
in necessity在贫困中,陷于穷困
of necessity必然地,必定,不得已,不可避免地
in case of necessity除非必要
out of sheer necessity出于不得已
under the necessity of doing sth不得已而做某事,有做某事的必要
～+介词
necessity for需要…
necessity of the times时代的需要
-ties of existence〔life〕生活必需品
词组短语
of necessity必然地；不可避免地
out of necessity出于需要，必定
by necessity不得已；必然地，不可避免地
logical necessity必然性，逻辑的必然性
双语例句
用作名词(n.)
Necessity is the mother of invention.
需要是发明之母。
Want and necessity break faiths and oaths.
匮乏和需要可以打破信仰和誓言。
Water is of vital necessity in the desert.
在沙漠地区水是维持生命的必需品。
Food is a necessity, but wine is an extravagance.
食物是必需品,而酒则是奢侈品。
The necessity for making decisions devolves on him.
作出决策乃当务之急，此事必然地落在他身上。
That men would die was a matter of necessity; which men would die, though, was a matter of circumstance.
人总有一死，这是必然的事，不过哪些人死，这是偶然的事。
权威例句
Meaning and necessityThe Necessity of Housing Investigation
Meaning and Necessity: A Study in Semantics and Modal Logic
The Necessity and Feasibility of Apitherapy Standardization Construction
Reflections on the Necessity of Setting up Wine-related Majors
Regulatory T cells and infection: a dangerous necessity
The Necessity for Correcting for Cerebral Atrophy in Global Positron Emission Tomography Measurements
Decision making in the TBM: the necessity of the pignistic transformation
Symptom validity assessment: practice issues and medical necessity NAN policy & planning committee.
Notice of Applications for Certificates of Public Convenience and Necessity and Foreign Air Carrier Permits Filed Under Subpart B (F...
necessity (n.)
late 14c., "constraining power of circumstances," from Old French necessité "need, necessity; privation, poverty; distress, torment; obligation, duty" (12c.), from Latin necessitatem (nominative necessitas) "compulsion, need for attention, unavoidableness, destiny," from necesse (see necessary). Meaning "condition of being in need" in English is from late 15c.
Necessity is the Mother of Invention. [Richard Franck, c. 1624-1708, English author and angler, "Northern Memoirs," 1658]
To maken vertu of necessite is in Chaucer. Related: Necessities.1. Necessity is the mother of invention.
需要乃发明之母。
hj.wangyushuang.com
2. The necessity of making a living disentranced him from his gamble.
谋生的必要使他醒悟，不再赌博了。
《21世纪大英汉词典》
3. If you are a manager of technology at any level, this is your responsibility as well as a survival necessity.
如果您是某个层级技术的经理，那么学习它是您的职责，也是您赖以生存的必需品。
www.ibm.com
4. Out of necessity or out of interest, people go back to school for the common goal to improve themselves.
不管是出于需要，还是出于兴趣爱好，人们重返学校是为了一个共同的目标----提高自己。
www.hjenglish.com
5. The things you have fashioned in necessity or for delight.
带着你们因需要或喜爱而制出的常用之物。
www.ebigear.com
6. This environment, I believe, is based upon the necessity for security and friendship.
营造这个环境，我相信，是以安全和友谊为必要前提的。
www.hjenglish.com
7. Depending on the necessity, one can choose to maintain this or not maintain it.
取决于必要性，一个人可以选择维护这个或不维护。
www.ibm.com
8. But then you lose the whole purpose of locking and atomicity, which clearly shows the necessity of using the memory constraint.
但这样您会无法理解锁定和原子性的全部意图，这些明确显示了使用内存约束的必要性。
www.ibm.com
9. There does not seem any radical necessity why a good man should be a fool.
至于一个好人为什么应该是一个傻瓜，似乎没有任何根本的必要性。
article.yeeyan.org
10. I love the necessity defence.
我喜欢这种必要性辩护。
article.yeeyan.org
11. She learned the trade by necessity and under duress.
因为需要和被迫，她学会了做生意。
article.yeeyan.org
12. While many sectors, including the public, know the necessity of saving energy, they, for one reason or another, simply can not put it into practice.
尽管许多部门，包括公众，知道节省能源的必要，然而，由于这样或那样的原因，他们并不不付诸于实践。
www.hjenglish.com
13. After all, in a true war of necessity, like World War II, a state and a people summon the capacity to do what must be done, no matter how difficult.
毕竟，在一场像二战一样的真实必要的战争中，一个国家和他的人民会唤起所有的力量来做他们必须做的事情，无论多么困难。
article.yeeyan.org
14. He has the power to choose, but no power to escape the necessity of choice.
他有选择的能力，但没有逃避选择的必要性的能力。
article.yeeyan.org
15. You can keep your baby safer by teaching your little one the importance and necessity of sitting and not getting up and walking or jumping around in the tub while bathing.
你可以告诉你的小宝贝在洗澡时要坐着、而不能站起来或者在水盆里走走跳跳的重要性和必要性，从而确保你的孩子的安全。
www.elanso.com
16. Without an enemy to strive against, there is a lack of unity amongst us; therefore we have the mental necessity of evil.
如果没有敌人让我们同仇敌忾，我们就会缺乏团结；因此，我们精神上需要有邪恶的存在。
www.elanso.com
17. Water is of vital necessity in the desert.
在沙漠地区水是维持生命的必需品。
www.hjenglish.com
18. My husband and I watch movies from the library on his laptop, which relieves us of the necessity of owning a TV and a stack of DVDs.
我丈夫和我在他笔记本电脑的库中看电影，这样可以缓解我们两个去拥有一台电视机和一堆DVD碟的必要。
article.yeeyan.org
19. But now lets think about this necessity , suppose A happens, A might be the motion of one billiard ball towards another.
现在让我们来考虑下必要性问题，假设A发生了情况，A可能是某台球对另一台球的撞击运动。
open.163.com
20. And as such, he understood perhaps better than anyone the sheer absurdity, but absolute necessity, of attempting to derive meaning from the universe of knowledge.
作为图书馆员，他或许比任何人都了解，试图从知识的宇宙中产生意义，这件事是绝对荒谬的，但也是绝对必要的。
article.yeeyan.org
21. This breeds a sense of entitlement that is incompatible with the necessity to fight for leadership power.
这会滋生一种优越感，而它与为领导权力而争斗的必要性是极不相容的。
news.iciba.com
22. Is it out of necessity or because you genuinely enjoy it?
没有那个必要?或者你真的很喜欢这种方式？
www.elanso.com
23. Corporate and IT systems agility is not a luxury, but a necessity.
公司和IT系统敏捷性不再是奢侈品，而是必需品。
www.ibm.com
24. I believe in a future where China is a strong, prosperous and successful member of the community of nations; a future when our nations are partners out of necessity, but also out of opportunity.
我所相信的未来是：中国是国际社会强大、繁荣和成功的一员；届时我们的国家将不仅是出于需要而且也是出于寻求机遇成为合作的伙伴。
www.hjenglish.com
25. Here, once again, you should consider the necessity of a stateful interaction model as part of your decision process.
这里再强调一次，您应当将有状态交互模型的必要性作为决策过程的一部分进行考虑。
www.ibm.com
26. Out of necessity we could develop bacteria to extract resources directly from the regolith — a useful technology for Earth as well.
如果需要，我们可以培养细菌，直接从表土提取资源——这项技术在地球上也非常实用。
article.yeeyan.org
27. In fact, they will have to melt away -- out of necessity on both sides.
事实上，它们也必须消失---也是出自双方的需要。
article.yeeyan.org
28. In fact, they will have to melt away -- out of necessity on both sides.
事实上，它们也必须消失---也是出自双方的需要。
article.yeeyan.org
29. In the mechanical world, complex storage systems, by necessity, use different mechanical form factors at each level: In a file cabinet, you never see folders inside folders or file drawers inside file drawers.
在机械世界里，复杂的存储系统根据需要，在不同层次使用不同的机械形式。 对于文件柜，你不会在柜子里看到柜子，或者在抽屉里看到抽屉。
-- 来源 -- About Face 3交互设计精髓
30. This is a necessity, because most idioms don’t have metaphoric meaning at all, and the stories behind most others were lost ages ago. Graphical interfaces are largely idiomatic
大量记忆是必要的，因为多数习惯用法没有丝毫隐喻含义，其他即使背后有典故，大多数也由于年代久远而失传了。
-- 来源 -- About Face 3交互设计精髓
31. Configuration is a necessity for expert users.
对于专家用户来说，配置是必需的。
-- 来源 -- About Face 3交互设计精髓
32. Scrolling is often a necessity, but the need for it should be minimized when possible.
滚动通常是必要的，但应该尽可能地减少这种需要。
-- 来源 -- About Face 3交互设计精髓
33. Night follows day as a necessity.
白天过去,夜幕降临,这是必然的。
-- 来源 -- 英汉 - 辞典例句
34. In a 3D environment, rich feedback in the form of cursor and other types of hinting becomes a necessity.
在三维环境中，以光标和其他类型的暗示来显示丰富的视觉反馈是非常必要的。
-- 来源 -- About Face 3交互设计精髓
35. Some programs offer user-configurable accelerators, and there are many instances where this is a good idea, and even a necessity, especially for expert users.
一些程序提供可自配置的加速器，有许多实例证明这是个好主意，特别是对于专家用户来说甚至是一种必需。
-- 来源 -- About Face 3交互设计精髓
36. Although this is becoming less true as laptops gain both the power of desktop systems and wireless capabilities, it remains the case that users will, by necessity of the form factor, be stationary and out of the hubbub even when using laptops.
尽管目前笔记本电脑同时具备桌面系统和无线移动的能力，但使用场合还没有发生太多的变化。 由于笔记本电脑的物理形态因素（大小及重量等）的限制，所以在使用时，它通常还是处于静止和安静的环境中。
-- 来源 -- About Face 3交互设计精髓
37. emphasize the necessity for preserving our natural resources
强调保护自然资源的必要性
-- 来源 -- 英汉 - 辞典例句
38. Especially for handhelds, close collaboration among interaction designers, industrial designers, programmers, and mechanical engineers is a real necessity.
特别是对于手持设备，交互设计者、工业设计者、程序员和机械工程师的紧密的合作是必需的。
-- 来源 -- About Face 3交互设计精髓
necessity
