We applied ourselves and studied hard together to improve ourselves.

He is improving his piano skills by playing etudes every day.

I set aside time for self-practice every day.

I study Japanese every day using a workbook.

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.

It's important to believe in yourself.

She uploaded a selfie to Instagram.