He is known as a person with learning.

He is studying about the uncontacted tribes in the Amazon.

He is from a tribe in Africa.

Mineral oil is often used in the manufacture of cosmetics and pharmaceuticals.

It is important to understand the importance of health.

We are focusing on the research and development of new products.

I conducted a research project as a summer vacation homework.

My brother is a graduate student at the University of Tokyo.

I am a member of that research association.

My laboratory is on the third floor of the university.