He is a world-renowned researcher.

He is known as an excellent researcher.

The greater part of the time is spent on work.

This project was partially successful.

In French, the partitive article plays a very important role.

The study of chromosomes is an important part of genetics.

His body build is like that of a sports player.

He has a deep interest in archaeology.

He understands the importance of learning.

He is majoring in psychology.