Read Edit View history 推本溯源 tuīběnsùyuán trace back Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 推本溯源 · tuīběnsùyuán · trace back 2026/03/04 推本溯源 tuīběnsùyuán trace back to go back to the source 研究历史问题，必须推本溯源。 idiom created sense Mar 4, 2026, 02:25 AM