centrepiece
noun /ˈsentəpiːs/
  /ˈsentərpiːs/
(US English centerpiece)
 - [singular] the most important item最重要的项目(或物品) - This treaty is the centrepiece of the government's foreign policy.这个条约是政府外交政策最重要的一环。 
- The water lily is obviously the centrepiece of any water garden.睡莲显然是任何水上花园的中心。 
 
- This treaty is the centrepiece of the government's foreign policy.
- a decoration for the centre of a table桌子中央的装饰品