backdrop
noun uk/ˈbæk.drɒp/ us/ˈbæk.drɑːp/
[ C ] (UK also backcloth, uk/ˈbæk.klɒθ/ us/-klɑːθ/)背景幕布
a large piece of cloth with buildings, countryside, etc. painted on it, hung at the back of a stage during a performance
[ S ]背景
the view behind something
The mountains form a dramatic backdrop to the little village. 群山如画，映衬着小山村。
[ S ]（事件的）背景
the general situation in which particular events happen
Their love affair began against a backdrop of war. 他们的爱情故事开始于战争年代。