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.

She is very smart, but as the proverb goes, 'A clever woman can't sell a cow,' she can't do everything well.

A binary operator is one of the basic concepts in algebra.

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.