prologue
Definition
An introductory section of a book, speech, or play that sets the stage for what follows.
中文 书籍、演讲或戏剧的介绍性部分，为后续内容做准备。
Example
"The prologue of the play introduces the main character and the central conflict."
An introductory section of a book, speech, or play that sets the stage for what follows.
中文 书籍、演讲或戏剧的介绍性部分，为后续内容做准备。
"The prologue of the play introduces the main character and the central conflict."