Read Edit View history 褪黑激素 tuìhēijīsù melatonin Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 褪黑激素 tuìhēijīsù melatonin (biochemistry) melatonin 服用褪黑激素有助于改善睡眠质量。 Edit Delete References Add reference No references for this word.