We are focusing on the research and development of new products.

I conducted a research project as a summer vacation homework.

We usually represent numbers using the decimal system.

He hit a great base advancement.

He ran fast and advanced to the next base.

His research has made significant progress.

Shinjiro is my best friend.

Mr. Shindo is my best friend.

His country was sanctioned by other countries due to nonpayment of tribute.

He is planning to advance to graduate school next year.