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.

Even though he is a doctor, he doesn't take care of his own health. It's truly a case of 'physician, heal thyself'.

He used a stick to measure the depth of the river.