Read Edit View history 烟碱素 yānjiǎnsù niacin Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 烟碱素/菸鹼素 · yānjiǎnsù · niacin 2026/03/04 烟碱素 / 菸鹼素 yānjiǎnsù niacin niacin 菸鹼素是維生素B群的一員，對人體健康很重要。 created sense Mar 4, 2026, 02:25 AM