In this case, you should indicate that evening dress will be required.这样的话, 你应该指出要穿晚礼服。

He did look silly in evening dress at this hour of the day.他在一天当中的这个时候穿晚礼服看起来确实很傻。

a dignified young lady in evening dress一位穿着晚礼服的高贵的年轻女士

a musician in full evening dress穿着正式晚礼服的音乐家

I went home to change into an evening dress.我回家换了晚礼服。

She looks incredible in a blue evening dress.穿着蓝色晚礼服的她看起来美极了。