我叔叔是一位热心的现代艺术收藏家。

My uncle is a passionate ___collector of modern art.

学校的集邮俱乐部里有许多狂热的邮票收藏家。

The school club has many avid stamp ___collectors.

作为一名终身的收藏家，她拥有广泛的古董知识。

As a lifelong ___collector, she has extensive knowledge of antiques.