On Chinese Phrase "Zaishuo"

In mandarin,"zaishuo" can appear as an across-constituents syntagm,a verb and a conjunction.This paper first examines the synchronic variance of "zaishuo",suggesting that it is shifting from a conjunction to justification addition marker,then explains its synchronic variance from the perspective of diachronic change,and draws on topic-recollect marker zaishuo's development as circumstantial evidence for the opinion that "zaishuo" is conjunction deriving from "zaishuo" as across-constituents syntagm by means of lexicalization.