Abstract: There are several statements which are about Weidong Yongfa, such as Liangduo Argument(两多说),i.e., Duodong(多动), Duobin(多宾), Jiedong Yongfa Argument(介动用法说) and Cancel Argument. Liangduo Argu-ment's fatal defect is that it is just content with listing numerous items which were criticized by the othertwo arguments because it violate the grammatical generality principle. Jiedong Argument is so simple that itcan't from a third equally important argument, and moreover, this argument put in other linguistic phen...