petard
英 [pəˈtɑːd]
美 [pəˈtɑːrd]
网络 爆竹; 攻城炸药箱; 炸药兵; 炸药筒; 花火
BNC.36471 / COCA.35942
习惯用语
n.
- be hoist/hoisted by/with your own petard
- 害人反害己;自食其果
to be hurt or to have problems as a result of your own plans to hurt or trick others
英英释义
noun
- an explosive device used to break down a gate or wall