变动成本 biàndòngchéngběn variable cost Origin Definitions Defs Strokes Stroke Words Sentences Sents 变动 變動 biàndòng verb to change to change or fluctuate; to undergo modification or reorganize成本 chéngběn noun cost The total expenses required to manufacture a product, provide a service, or conduct a business operation; includes material, labor, and overhead costs.