演 yǎn HSK3 perform Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: practice All meanings 15 yǎn 15 perform 14practice 1 1 sentence for 演 (yǎn — practice) 数学老师在黑板上把这道题的推导过程演了一遍。 shùxué lǎoshī zài hēibǎn shàng bǎ zhè dào tí de tuīdǎo guòchéng yǎn le yī biàn. The math teacher demonstrated the derivation of this problem on the blackboard. Source: Dong Chinese Dictionary