dioneWiktionary 原文英美构词拆解didi-前缀one-one后缀di-Two. · Double, twice the quantity.-onea ketone · any similar compound containing a carbonyl functional group词源说明From di- + -one.释义名词noun1(organic chemistry, sometimes in combination) diketone同族词派生词 12androstenedione·butanedione·cyclohexanedione·gliquidone·