I am studying Japanese.

We are going on a trip together.

I buy foodstuff at the supermarket every week.

He thinks that war is a necessary evil.

Do you understand the necessity of this project?

That information is unnecessary.

That information is completely unnecessary.

The passenger pigeon is an extinct species that was once very common in North America.

My dream is to time travel.

His travelogue was very interesting, and I finished reading it in one go.