It's 5 kilometers from my house to school.

This car can run at a speed of 100 kilometers per hour.

The velocity of flow of this river is 5 kilometers per hour.

We often have picnics by the river on weekends.

We often have picnics by the river on weekends.

We have a picnic by the river every weekend.

In May, there is Golden Week in Japan.

This city has an area of about 20 square kilometers.

2.5D stage is a new form of entertainment where real actors play anime characters.

He participated in the Olympics as a pentathlon athlete.