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HSK levels

    以其人之道,还治其人之身 以其人之道,還治其人之身

    yǐqírénzhīdàohuánzhìqírénzhīshēn

    1. to use an opponent's own methods to obtain retribution (idiom, from Song dynasty neo-Confucianist Zhu Xi 朱熹[Zhu1 Xi1]); to get revenge by playing sb back at his own game; to give sb a taste of his own medicine