痕迹 hénjì HSK7 trace Origin Definitions Defs Strokes Stroke Words Sentences Sents 不着痕迹 bùzhuóhénjì to leave no trace to leave no trace or signs; to do something seamlessly or unobtrusively不落痕迹 bùluòhénjì to leave no trace to leave no trace; to be seamless or professional in execution