来源 láiyuán HSK4 source Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: origin All meanings 17 láiyuán 17 source 16origin 1 1 sentence for 来源 (láiyuán — origin) 这种风俗的来源可以追溯到古代。 zhè zhǒng fēngsú de láiyuán kěyǐ zhuīsù dào gǔdài. The origin of this custom can be traced back to ancient times. Source: Dong Chinese Dictionary