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.

This shirt has fine fibres and is very soft.

Understanding the transition state of a chemical reaction is important for predicting the progress of the reaction.

He works at a major news agency.

We are working on building a new communications network.

My specialty is telecommunications.

He is known as an excellent correspondent.

I bought new clothes through mail-order.