This cell is dividing very actively.

This fort was built to protect the town from enemies during wartime.

We should learn about disaster prevention.

He was immersed in the memories of his deceased wife.

There were many people gathering, and the park was bustling.

He has a collection of stamps.

He has a talent for music.

Since it was the last time I was going to see my friend, I said 'goodbye' to him.

She is good at dressmaking.

We are considering the adoption of a new system.