prologue
🇺🇸
/ˈprəʊlɔːɡ/
🇬🇧
/ˈprəʊlɒɡ/
An introductory part before the main content, like a speech or a chapter.
The prologue of the play set the scene for the drama that was to unfold.
戏剧的序幕为即将展开的戏剧场面设定了基调。