backdrop [ˈbækdrɑ:p]

例句:

• Light colours provide an effective backdrop for pictures or a mirror.
  浅色是挂放图画或镜子很有效果的衬托。
  
• The backdrop is a plane heading for Luton airport.
  来自BBC
• The profits rise was achieved against a backdrop of falling metal prices.
  在金属价格下跌的背景下，利润提高了。
  
• The mountains provided a dramatic backdrop for our picnic.
  群山如画，给我们的野餐平添景色。
  
• That anger forms the backdrop to the Corby result.
  来自THETIMES
• Other risk factors include the political backdrop in Italy.
  来自THETIMES