set the scene

US /set ðə siːn/
UK /set ðə siːn/
"set the scene" picture
1.

介紹背景, 設置場景

to describe the situation or background in which something happens

:
Before we discuss the details, let me set the scene for you.
在我們討論細節之前,讓我先為你們介紹一下背景
The opening chapter of the novel does a great job of setting the scene.
小說的開篇章節在設置場景方面做得很好。