The movable screen or drape in a theater or hall that separates the stage from the auditorium or that serves as a backdrop.
幕布在剧院或大厅内隔开舞台和观众或作为背景幕的可移动遮蔽物或帷幕
backdrop详细解释
back.drop
n.(名词) A painted curtain hung at the back of a stage set.Also called backcloth 背景幕:挂在舞台后部的彩色幕布也作 backcloth The setting, as of a historical event; the background. 背景:背景,如历史事件的背景;背景情况