Read Edit View history 逆流溯源 nìliúsùyuán trace back Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 逆流溯源 · nìliúsùyuán · trace back 2026/03/04 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。 created sense Mar 4, 2026, 02:25 AM