The theater company emailed ticket holders that the prologue would begin promptly at 7 p.m.

劇團寄電子郵件通知持票觀眾，序幕將於晚上七點準時開始。

During the client dinner, we watched a play whose prologue introduced the main family conflict.

在客戶晚宴期間，我們觀賞了一齣戲，序幕就交代了家族的主要衝突。

The director asked the hiring panel to cast an experienced actor for the brief prologue.

導演請徵選小組找一位有經驗的演員來演出簡短的開場白。