Chapter 1: It is an introduction, which mainly studies its current situation, the purpose and research method of the phenomenon of "use of parts of speech".
The first chapter is the introduction, which mainly studies the phenomenon of "flexible use of parts of speech", its current situation, the purpose and research methods of this paper.
The first chapter is the introduction, which mainly studies the present situation, the purpose and research methods of the phenomenon of "flexible use of parts of speech".