He is interested in learning the international auxiliary language.

He is interested in paleozoology.

On a summer night, I could hear the cry of the Hachijō cicada.

The International System of Units is a system of units commonly used worldwide.

In order to solve this quantum mechanics problem, we need to find the eigenfunction.

He is from the Caucasus region.

She went to the party wearing her new coatdress.

Since it started raining, I put on a raincoat.

This coaster is my favorite.

He is preparing the props to use on stage.