powder my nose 补妆;去洗手间（美语中女士委婉用法）

【例句】
Would you get me another drink while I go and powder my nose? Thanks a lot.
我去补补妆，你能不能再帮我要杯酒？多谢啊！

She said that she's powder her nose and she'd be here right away. We can wait for her right here.
她说她要补妆，她马上就来。 我们可以在这里等她。