reject as invalid, especially by legal procedure
废止;宣布无效
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his conviction was quashed on appeal .上诉后他的判决被撤销。
put an end to; suppress
结束,终止;镇压,平息
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a hospital executive quashed rumours that nursing staff will lose jobs .一位医院管理人员平息了护理人员将要失业的谣言。
"Middle English: from Old French