效用 xiàoyòng effectiveness Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: utility All meanings 2 xiàoyòng 2 effectiveness 1utility 1 1 sentence for 效用 (xiàoyòng — utility) 边际效用递减是经济学的一个基本规律。 biānjì xiàoyòng dìjiǎn shì jīngjìxué de yī gè jīběn guīlǜ. Diminishing marginal utility is a fundamental law of economics. Source: Dong Chinese Dictionary