词汇化及相关理论有效地沟通了语言研究中“共时”和“历时”的分野,将“共时”的面貌看作是“历时”的叠加投射。本文以“过于”和“终于”两个词的历时考察入手,深入刻画这两个词在语言历时演变背景下各自的演变轨迹,并试图比较其历时演变的异同。 Lexicalization and related theories effectively communicate the distinction between “synchronicity” and “diachronic” in linguistic research and consider the appearance of “synchronicity ” as a superimposed projection of “diachronic ”. This article starts from the diachronic study of the words “too” and “finally”, and deeply portrays the evolution path of these two words in the context of linguistic evolution and tries to compare the similarities and differences between the two dialects.