Yamada's son is a very excellent student.

He understood that it was necessary to obey the prison rules.

My son has become a doctor.

This building is designed to withstand lateral pressure during an earthquake.

When the engine's piston moves, the car moves forward.

He was hospitalized for a blockage in his heart.

It is important to exercise every day and maintain good health.

He is leading a very healthy life.

My Chinese zodiac sign is the Rooster.

Mr. Higashi is my best friend.