Stamp collecting was the theme of his talk.

集邮是他谈话的主题。

John has many hobbies, such as hiking and stamp collecting.

约翰有很多，如远足和收集邮票。

I don't want to hear any more about your stamp collecting.

不想再听到关于你集邮的事。

And then some teenagers, you know, they get quite a rush from stamp collecting.

还有些孩子们，他们爱集邮。

Furthermore, George was a modest character who preferred stamp collecting and spending time with family to courting controversy.

此外，乔治性格谦虚，喜欢集邮和与家人共度时光，而不是引起争议。