centre stage (alsocentre-stage)

• 1.  

  N-UNCOUNT（不可数名词） If something or someone takes centre stage, they become very important or noticeable. 中心议题 [also 'the' N]

  例：

  Nuclear proliferation has returned to centre stage in international affairs.

  核扩散又成了国际事务中的中心议题。