necessity 英 [nəˈsesəti] 　 美 [nəˈsɛsɪti]

necessity

necessity　 英 [nəˈsesəti] 美 [nəˈsɛsɪti]

n. 需要；必然性；必需品　

名词复数:necessities　

necessity is the mother of invention.　需要乃发明之母。
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。

  • A good camping knife is a necessity if you’re going to be hiking in a heavily forested region. A necessity is something that you must have in order to complete a task.
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  • n. 需要；必然性；必需品

  • 1. necessity is the mother of invention.

    需要乃发明之母。

  • 2. 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。

  • 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。

  • 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.
ne·ces·sity / nəˈsesəti ; NAmE nəˈsesəti / noun 1 [uncountable ] the fact that sth must happen or be done; the need for sth 必然；必要；需要 necessity(for sth) ◆ We recognize the necessity for a written agreement. 我们认为有必要签订一份书面协议。 necessity(of sth/of doing sth) ◆ We were discussing the necessity of employing more staff. 我们在讨论是否需要雇用更多员工。 necessity(for sb) to do sth ◆ There had never been any necessity for her to go out to work. 她从来就没有出去工作的必要。 ◆ This is, of necessity,a brief and incomplete account. 这必然是一个简略的、不完全的描述。 2 [countable ] a thing that you must have and cannot manage without 必需的事物；必需品 ◆ Many people cannot even afford basic necessitiessuch as food and clothing. 许多人甚至买不起食物和衣服之类的基本必需品。 ◆ Air-conditioning is an absolute necessity in this climate. 这样的气候绝对需要有空调。 3 [countable ,  usually singular ] a situation that must happen and that cannot be avoided 必然性；不可避免的情况 ◆ Living in London, he felt, was an unfortunate necessity. 他觉得在伦敦生活是迫于无奈。 IDIOM neˌcessity is the ˌmother of inˈvention ( saying) a difficult new problem forces people to think of a solution to it 需要是发明之母 ☞more at virtue necessity necessities ne·ces·sity / nəˈsesəti ; NAmE nəˈsesəti /
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