It is important to understand the importance of health.

This is a real diamond.

I think this bag is a fake.

He is a very excellent technician.

The advancement of science and technology has greatly changed our lives.

He is good at solving technical problems.

Information technology plays a very important role in modern society.

I am very interested in social science.

My grandfather recently started participating in the Internet Elderly Association.

Learning Modern English is important for smooth international communication.