n. 1.(古代攻城等用的)炸药包。 2.大花炮。 短语和例子 be hoist with [by] one's own petard 害人反害己，作法自毙，搬起石头砸自己的脚。
Example Sentences:
1.
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，可是到头来却是害人反害己。
2.
As for me , i was hoisted up by me own petard 而我，我碰上了以前自己的小麻烦… …
3.
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。
4.
The criminal was hoist with his own petard when he tried to kill his master , because he accidentally drank the poison that he intended to give to him 那罪犯试图谋杀师傅时，反而害了自己，因为他意外地喝下了他欲给师傅的毒药。
5.
I thought i would embarrass the financial director by revealing his next month ' s projection but i was hoist with my own petard when the leak was traced back to me 我本想透露财务处长下个月的计划使他难堪的，但消息泄漏一事追查到我时，我便搬起石头砸了自己的脚。
