prologue

序言、序幕、开场白

The novel opens with a short prologue set ten years earlier.

这本小说以一段简短的序言开场，背景设在十年前。

前奏、序幕

That protest was only the prologue to months of unrest.

那场抗议只是接下来数月动乱的前奏。

为…作序、加上前言罕见

The editor prologued the collection with a personal note.

编者为这本文集加上了一段个人的前言。