From the syntax perspective, the principal clause of Chinese verb-copying supplementary complex-sentence is in the form of complex predicate, and the subordinate clause duplicates or duplicates partly the core predicate verb of the sentence, adds structural particle-"de", and then brings the complement. 从句法上看,复动补充复句主句谓语形式复杂,补句重复或部分重复主句中的谓语核心动词,再带结构助词得后跟补语。