This paper investigates the diachronic evolution of the verbs of Change “yi” (易), “mao”(贸), “geng”(更), “huan”(换). It is claimed that “yi”(易) was the dominant word in ancient times. The new word “huan”(换) emerged in Wei Jin Southern and Northern Dynasties and took over “yi”(易) to Tang Dynasty. This paper also with formation of synonymy coordinate disyllables as the object of the research, described that monosyllabic verb was how to develop a synonymy coordinate disyllables. Finally, Analyzing in a comparative way the major features of Chinese orality and Chinese literacy from the views of lexicon, style and occasion, We can enhance Chinese learners’ awareness of the differences between the two stylistics.