curtain raiser
近义词：prelude，preliminary，
英英释义
Noun
- any preliminary activity
- a short play presented before the main play
例句
用作名词(n.)
- China seems to feel unusually bold before the Summer Olympics, seen here as a curtain raiser for the nation's ascent to pre-eminence in the world.奥运会临近，中国似乎显得异乎寻常地勇猛，视之为跻身世界强国舞台的开场戏。