prologue

n.开场白；序言；序幕

The prologue of the book is a famous writter. 这本书的序言是由一个著名作家写的。

At the beginning, I wrote the prologue in Chinese. 最初，我用中文写了本版的序言。

The murder was the prologue to World War I. 这场谋杀是第一次世界大战的序幕。

Certainly, this was only the splendid prologue. 当然，这只是精彩的序幕。