分解作用 fēnjiězuòyòng decomposition Definitions Defs Origin Strokes Stroke Words Sentences Sents 分解 fēnjiě verb to decompose To break down a chemical compound into simpler substances or elements作用 zuòyòng noun function the natural purpose or activity of something, such as a biological or chemical process; often used as a suffix to mean "-ation" or "-ing" as in 消化 xiāohuà plus this word for "digestion"