necessary形容词 adj.1.必要的; 必需的 It took me a year to get the necessary materials together.我花了一年的时间才把所需要的资料组织好。It is necessary that one should obey the law.一个人遵守法律是必要的。2.必然的; 不可避免的 Because the company was doing more business it was necessary to expand the factory.由于公司业务的扩大, 扩大工厂是必然的。3.迫不得已的，非做不行的，非自愿的，不自由的名词 n.1.必需品 He has enough money to obtain the necessaries of life.他有足够的钱购买生活必需品2.必要物；必要，必须3.[用复数]【法律】生活必需品
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