invalidate

in'vælideit

托福

v. declare invalid
v. show to be invalid
v. take away the legal force of or render ineffective

vt. 使无效
[法] 使无效, 使无效力, 使作废

14,319

BNC 频率

14,552

使用频率

invalidate由前缀in-（表示否定）和词根valid（有效的）以及后缀-ate（动词后缀）组成，整体意思是“使无效”。

例句

1. The new evidence could invalidate the previous study's results.

新的证据可能会使之前研究的结果失效。

2. If you don't submit your application on time, it may be invalidated.

如果你不按时提交申请，它可能会被作废。

3. The contract was invalidated due to a lack of signatures.

合同因缺少签名而被作废。