I commute using a train that stops at every station.

Because his sense of pain is dull, he doesn't notice right away when he gets injured.

The denuclearization of North Korea is an important issue for world peace.

A round angle is 360 degrees.

This figure can be solved using the double-angle formula.

That information is not yet verified.

The polyhedral angle of this cube is 90 degrees.

The yūkaku of the Edo period was a world completely different from modern entertainment.

Normalization of a database is important to avoid data duplication.

By normalizing the data, analysis becomes easier.