He is an expert in osteology.

He loves mountains and goes climbing every year.

That theory is unscientific and has no evidence at all.

He is an expert in computer science.

The Ministry of Education is responsible for Japan's educational policy.

My father is an expert in otolaryngology.

My major is chemical engineering.

The National Research and Development Agency plays a crucial role in advancing science and technology.

He is known as a person with learning.

Gaku was standing at the top of the mountain, looking at the distant scenery.