动词
中文翻译：使无效
同义词：
['null', 'nullify', 'undo', 'dissolve', 'erase', 'eliminate']
例句：
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1. The law was nullified by the court's decision.
法院的决定使该法律无效。
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2. The company's merger plan was nullified by a lawsuit.
公司的合并计划因诉讼而被取消。
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3. The government's tax policy was nullified by the new regulations.
政府的税收政策因新的法规而无效。