petard

名词 petard:

1. a explosive device used to break down a gate or wall

1. The police hoisted the criminal with his own petard.
   警察使罪犯搬起石头砸自己的脚。

pe.tard

n.（名词）
A small bell-shaped bomb used to breach a gate or wall.
攻城炸药箱：用来炸开大门或墙壁的一种钟形小炸弹
A loud firecracker.
爆竹，鞭炮

来源：
French pétard
法语 pétard
from Old French
源自 古法语
from peter [to break wind]
源自 peter [放屁]
from pet [a breaking of wind]
源自 pet [屁]
from Latin pôditum [from neuter past participle of] pôdere [to break wind] * see pezd-
源自 拉丁语 pôditum [] 源自pôdere的中性过去分词 [放屁] *参见 pezd-