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| NOUN |
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| /nəˈsesəti/ |
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| 1 | U a process , thing , or action that is needed in a situation 必要；必要性；需要 |
| +for the necessity for a strong diplomatic effort 强大外交努力的必要性 |
| necessity of (doing) sth doubts about the necessity of the war 对战争必要性的怀疑 |
| necessity to do sth We both recognize the necessity to get this right. 我们俩都意识到做好这件事的必要性。 |
| out of necessity (=because it is necessary) Women increasingly went out to work, usually out of economic necessity. 出于需要 |
| | 1a | C something that is difficult or unpleasant but cannot be avoided 不得已的事；不可避免的事 | | Raising taxes has become a necessity. 提高税金成了不可避免的事。 | |
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| 2 | C something that you must have in order to live , work , or do something 必不可少之物；必需品 |
| basic necessities like milk and bread 诸如牛奶和面包等基本必需品 |
| A car is a necessity in this town. 汽车在这城里是必不可少之物。 |
| the bare necessities (=the basic things that everyone needs) They lacked even the bare necessities of life. 基本必需品 |
| PHRASES |
| - | necessity is the mother of invention
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| used for saying that people find ways to do what they have to or get what they need |
| 需要乃发明之母 |
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| - | of necessity formal
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| used for saying that something must be done , designed etc in the way it is and cannot be different |
| 必定；不可避免地 |
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| Their buying decisions are of necessity motivated by practical considerations. 他们决定购买必定是出自实际的考虑。 |
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