vitiate
vitiate v. (1)破坏；使失去法律效力 (2)使无效；使可撤销指导致全部或部分无效，例如「欺诈使合同无效」〔fraud vitiates a contract〕。 (3)(在道德方面)败坏；使堕落
VITIATE
vitiate
vitiate (vish-ee-ayt), vb. 1. To impair; to cause to have no force or effect ( the new statute vitiates any common-law argument that the plaintiffs might have). 2. To make void or voidable; to invalidate either completely or in part (fraud vitiates a contract). 3. To corrupt morally (Mr. Lawrence complains that his children were