"Collecting stamps" 是收集邮票的常用英语短语。
这个短语来源于英语中 "stamp" 的意思是邮票，"collect" 的意思是收集。
例句：
I've been collecting stamps since I was a child. (我从小就开始收集邮票了。)
He has a large collection of rare stamps. (他有很多稀有邮票的收藏。)
She is an avid stamp collector. (她是一个狂热的邮票收藏家。)