In physics, it is important to calculate the center of mass of an object.

This story is about two heroes joining forces to defeat evil.

He is managing that land as his own territory.

This robot is a mass-production type, so the price is reasonable.

We need to increase the production of goods.

We need to increase the production of goods.

This island was once a dependency of the UK.

Due to the shortage of military food, the soldiers are feeling hungry.

The doctor instructed him on the appropriate dosage.

This problem cannot be solved with a quick-and-dirty treatment.