He is a famous sculptor.

Are you really not going to use this unused laptop?

He is the most competent employee of our company.

Who is the user of this software?

This bottle is reusable.

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.

He is a very excellent technician.

Caelum is one of the constellations in the southern hemisphere.