Read Edit View history 生长素 shēngzhǎngsù auxin Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 生长素/生長素 · shēngzhǎngsù · auxin 2026/03/04 生长素 / 生長素 shēngzhǎngsù auxin auxin (plant growth hormone) 这种植物生长素能促进根系的生长。 noun created sense Mar 4, 2026, 02:25 AM