nail in sb's / sth's coffin one of several bad things which help to destroy someone's success or hopes促使某人/某事物失败的因素:•Observers fear that this strike will be another nail in the coffin of the industry.观察家担心这次罢工将是对制造业的又一次致命打击。•the final nail in his coffin 导致他失败的最终因素 |