He is an expert in anthropology.

I am majoring in anthropology at university.

His room is full of heaps of books.

He is a renowned anthropologist, traveling around the world to study human cultures.

He couldn't say anything about issues outside of his field of expertise.

There are many different specialty stores in this town.

He is a specialist fool, with no interest in anything outside his field.

She is planning a date with her current boyfriend.

He lost everything.

My boyfriend gave me a gift.