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TOEFL BNC: 14319 COCA: 14552
invalidate
ɪnvælɪdeɪt ɪnˈvæləˌdeɪt
Word forms: 3rd person singular present tense invalidates, present participle invalidating, past tense , past participle invalidated
1 VERB 驳倒;证明站不住脚 To invalidate something such as an argument, conclusion, or result means to prove that it is wrong or cause it to be wrong. 驳倒;证明站不住脚
  • Any form of physical activity will invalidate the results. [VERB noun]

    任何形式的物理活动都会证明这些结果是错误的。

  • Some of the other criticisms were invalidated years ago. [VERB noun]

    其他的一些批评多年以前就被证明站不住脚。

2 VERB 使无效;使作废 If something invalidates something such as a law, contract, or election, it causes it to be considered illegal. 使无效;使作废
  • An official decree invalidated the vote in the capital. [VERB noun]

    一份官方法令宣布在首都举行的投票无效。

  • A contract signed now might be invalidated at some future date. [VERB noun]

    现在签订的合同可能在将来的某一天就会失效。

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