He has a wealth of scientific knowledge and is always excited about new discoveries.

He is studying computer science at a specialized school.

There are many different specialty stores in this town.

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

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

He has expert knowledge.

He lost everything.

She is planning a date with her current boyfriend.

Everyone was surprised by the news.

My boyfriend gave me a gift.