Read Edit View history 先河 xiānhé precursor Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 先河 · xiānhé · precursor 2026/03/04 先河 xiānhé precursor source; precursor; forerunner 这部电影开创了国产科幻片的先河。 noun created sense Mar 4, 2026, 02:25 AM