A motto or quotation, as at the beginning of a literary composition, setting forth a theme.

引语，格言在一部文学作品开头的引言，警句，阐明主题。

youdao

A motto or quotation, as at the beginning of a literary composition, setting forth a theme.

引语，格言在一部文学作品开头的引言，警句，阐明主题。

youdao