你以为 birthday suit 是生日西装，太天真了！大家都知道英语中很多短语我们是不能直译的，我们就必须知道多多积累其本土文化，才能真正地了解它的内在含义。比如这句“birthday suit”是不是很多小伙伴都会搞错呢！People said to be in their birthday suit are as naked as the day they were born.所谓的生日西装是指“赤*身*裸*体”，就像我们出生那天一样。没错，birthday suit = nakedness
