柯林斯詞典petard /p??tɑ?d/ 1. N (formerly) a device containing explosives used to breach a wall, doors, etc (舊時破壞牆、門等用的)爆炸裝置 返回 petard劍橋詞典?be hoist(ed) with/by your own petard →? hoist （見 hoist） 返回 petard