preface

US /ˈpref.ɪs/
UK /ˈpref.ɪs/
"preface" picture
1.

序言, 前言

an introduction to a book, especially one that states the author's aims

:
The author wrote a detailed preface explaining his motivations for writing the book.
作者写了一篇详细的序言,解释了他写这本书的动机。
Always read the preface first to get an overview of the book's content.
务必先阅读序言,以了解本书的概况。
1.

作序, 引出

to serve as an introduction or a preliminary to

:
The short speech will preface the main presentation.
简短的讲话将为主要演示文稿作序
He chose to preface his remarks with a personal anecdote.
他选择用一个个人轶事来引出他的评论。