Chloromethane is often used in organic chemistry experiments.

Difluoromethane is widely used as a refrigerant.

There are three boys named Akira in the class.

He rose in the world through hard work and talent.

He always plays minor parts in the theater company.

The Hachijō bulbul is chirping outside the window.

His heart became empty.

His heart felt like emptiness.

We have to fill in this hole.

This business will bring a large profit.