He plays online games with his friends every night.

It is important to understand the importance of health.

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

The greater part of the time is spent on work.

This project was partially successful.

He is an expert in ethology, and his research is highly regarded worldwide.

One part is important.

By regularly checking the key performance indicators, you can understand the performance of the company and devise improvement measures.