| 单词 | invalidate |
| 释义 | invalidateinvalidatesinvalidatedinvalidatinginvalidateinvalidate AC /ɪnˈvældeɪt/ verb [transitive] formal1to make a document, claim etc no longer officially acceptable: Failure to follow the instructions will invalidate the guarantee.instruction未按说明操作将使保修失效。2to show that something such as a belief or explanation is wrong |
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