Read Edit View history 烟碱素 yānjiǎnsù niacin Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 烟碱素/ 菸鹼素 yānjiǎnsù niacin 菸鹼素是維生素B群的一員，對人體健康很重要。 Edit Delete References Add reference No references for this word.