vitiate

vitiatevitiateD.J.:[ˈviʃieit]K.K.:[ˈvɪʃiˌet]vt.1.■削弱; 破坏; 损害

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vitiate['viʃieit]vt.1.■污损；破坏；污染：Smoking vitiates the air.吸烟会污染空气。2.■使堕落，使腐化；败坏(道德等)：His spirit was vitiated by pleasure seeking.他的志气因追求吃喝玩乐而消磨殆尽。3.■使(契约等)无效，使失效：The contract was vitiated because one person signed under compulsion.该契约由于一人系被迫签字而无效。变形vt.vitiatedvitiating

vitiatevitiate[ˈviʃieit]vt.1.■损害; 污染; 使腐败; 使(道德)败坏2.■使失效[无效]vitiate the air使空气混浊vitiate a contract使契约失效

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继承用法vitiable[ˈvɪʃɪəbl]adj.

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词性变化vitiation,vitiator[ˌviʃiˈeiʃən]n.