To be caught in one's own trap; to suffer the consequences of one's own harsh methods or schemes; to be hoist with one's own petard.
他为陷害他人设计的圈套，最终却落到自己头上，真是应了那句“请先入瓮”。
The trap he designed to ensnare others ultimately caught himself, truly fulfilling the saying, "Please first enter the urn."
Era:
Ancient
Frequency:
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