Spectroscopy is an important means of investigating the properties of matter.

We live in social housing.

He works at a public enterprise.

Japan is a constitutional state, and all people are equal under the law.

How much is the toll for the highway?

How much is the toll for this highway?

Looking at the population pyramid, you can see that this country is aging.

You shouldn't tell him secrets because he has a loose tongue.

Kou is a very smart boy.

On nights when the moon shines brightly, I feel special.