Interpersonal pragmatic study of professional identity construction International comparative study of people's livelihood construction On interpersonal meaning of deontic modality in the pragmatics identity construction Civil aviation professional ethics construction Historical sociological study on teacher identity construction 并列题名：Civil aviation professional ethics construction 并列题名：International comparative study of people's livelihood construction 并列题名：On interpersonal meaning of deontic modality in the pragmatics identity construction