"Without a dress rehearsal" 是一种说法,意思是没有进行过彩排。

"Dress rehearsal" 在这里指的是在舞台演出之前的练习,目的是为了调整舞台设置和演员的表演,以及确保所有的细节都能够顺利进行。

例句:

"We didn't have a dress rehearsal for the play, so we were a pttle nervous on opening night." (我们没有对这出戏进行过彩排,所以开场那晚我们有点紧张。)
"The band decided to go without a dress rehearsal and just wing it on the night of the concert." (乐队决定不进行彩排,在那晚的演唱会上直接表演。)