We are going on a trip together.

I lost my precious belongings.

He has expert knowledge.

He is studying computer science at a specialized school.

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.

There are many different specialty stores in this town.

I am planning to go to the hospital tomorrow.

He is majoring in medicine.

My father is a doctor.