On the Mood Particle “Hai” in Kaiyuan Dialect

"Hai" is a modal particle with heavy regional characteristics in Kaiyuan's dialect. "Hai" is read in intonations of ??????? conveying affirmation, emphasis, complaint, uncertainty, reminding modal meanings and all that at the end of affi rmative, impetrative, and interrogative sentences. The paper summarizes the fundamental meanings of "hai" based on the classifi cation and analysis.