"集邮"在英语中可以用三种表达方式：
"stamp collecting"，来源于英语中 "stamp"（邮票）和 "collecting"（收集）的结合。例句："I've been stamp collecting since I was a kid."（我从小就开始收集邮票了。）
"philately"，来源于希腊语 "philatepa"，意为 "爱邮票"。例句："He's a serious collector of philately."（他是一个认真的邮票收藏家。）
"postage stamp collecting"，来源于英语中 "postage stamp"（邮票）和 "collecting"（收集）的结合。例句："Postage stamp collecting is a popular hobby among many people."（邮票收集是很多人都喜欢的爱好。）