He bit into the apple.

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.

We vowed to see this project through to the end.

He played innocent by pretending he knew nothing.

He worked hard to overcome difficulties.

I decided to completely cut off my relationship with him.

Before getting on the train, the station staff punched my ticket.