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

We often go to conveyor belt sushi on weekends.

It takes time to introduce the development of new products.

I bought a new bathing suit.

He bought new swimming trunks.

My hobby is keeping saltwater fish.

This area is still undeveloped and rich in nature.

This area is still undeveloped, and nature is abundant.

The foundation of this building is very strong.

He should stop his selfish behavior.