语言的理据性和任意性是中外普遍关注的重要问题,早在战国时期的《荀子》一书中就有“约定俗成”论述,一直被作为语言任意性的经典学说。文章试图通过对与之相关的“成俗曲期”的“期”字的文字演变研究进行新的解读。 The motivation and arbitrariness of language are important issues of general concern both at home and abroad. As early as the “Xunzi” in the Warring States Period, there was a discussion of “conventions and conventions”, which has been used as the classical theory of language arbitrariness. The article attempts to make a new interpretation of the textual evolution of the “period” of the “Songs of Songs” related to it.