curtain-raiser

n.

开场短剧，（事件的）引子；

复数：curtain-raisers

CURTAIN-RAISER
Curtain-Raiser
CURTAIN-RAISER
Himalayan Blunder: The Curtain-Raiser to the Sino-Indian War of 1962
A curtain-raiser to bullet trains
Another Curtain-Raiser Revives Apple TV Talk
Six Ways the Wisconsin Recall is a Curtain-Raiser for November
Curtain-raiser - Extraordinary period bolsters reinsurance's importance
Kosovo, curtain-raiser for Iraq, still in search of a solution
Bahrain Slam the Brakes on Curtain-Raiser
Golden curtain-raiser Dazzling 'Don Giovanni' opens Lyric Opera's 50th season.(News)
Curtain-raiser: TWB Design sets the stage for Midtown entertainment-production company Ars Nova.
As a curtain-raiser: Jean Tardieu's «Théâtres Secrets»