柯林斯词典ketone /ˈkiːtəʊn/ 1. N any of a class of compounds with the general formula R′COR, where R and R′ are alkyl or aryl groups 酮→see also acetone 返回 ketone剑桥词典a type of chemical compound containing carbon , produced in the body when it burns fat 酮 返回 ketone