以子之矛,攻子之盾
yǐ zǐ zhī máo , gōng zǐ zhī dùn
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定義
- 1. lit. use sb's spear to attack his shield (idiom, derived from Han Feizi 韓非子|韩非子); turning a weapon against its owner
- 2. fig. to attack an opponent using his own devices
- 3. hoist with his own petard