帽子收顶英语怎么说

"Hat in, hat out"是指帽子的收顶，用英语来表达。这个短语来自于20世纪初期，当时男士会在室内戴上帽子，在出门时再把帽子取下。而女士则是在室内不戴帽子，在出门时戴上帽子。
下面是一些例句:
"When entering a building, the gentleman took off his hat as a sign of respect." (当进入一栋大楼时，这位绅士摘下了帽子，表示尊重。)
"The women at the party all put on their hats before leaving." (聚会上的女士们在离开前都戴上了帽子。)
"In the old days, it was customary for men to wear hats indoors, but times have changed." (在过去，男士在室内戴帽子是惯例，但现在已经不同了。)