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.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

He is the chief technical officer of our company.

He always keeps in mind the phrase 'If one learns without thinking, it is a waste.'