演出开始时,呜铃启幕.The curtain was rung up at the beginning of the play.秋季房交会昨日在星海湾启幕, 现场依旧热闹.The autumn room rendezvous began yesterday the star bay, the scene was as before lively....

“启幕”的英语可以翻译为：to raise the curtain...