Read Edit View history 逆流溯源 nìliúsùyuán trace back Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 逆流溯源 nìliúsùyuán trace back to go back to the source 我们需要对这次事故进行逆流溯源,找到根本原因。 Edit Delete References Add reference No references for this word.