petard [pəˈtɑ:rd]

例句:

• It was indeed a clever plan to entrap his opponent, but in the end he was hoist by his own petard.
  设圈套陷害他的对手固然是个妙计, 可是到头来却是作法自毙.
  
• The police hoisted the criminal with his own petard.
  警察使罪犯搬起石头砸自己的脚.
  
• Critics say he is in danger of being hoist with his own petard.
  有批评者认为他的话无疑是作茧自缚,但不管如何,切尔西是否能有一天超越在全球范围拥有五千五百万球迷、年获得五千万英镑收益的曼彻斯特联队?
  
• Never have a team been so comprehensively hoist with their own petard.
  来自THETIMES