He ran away from that terrifying situation.

I learned about electric flux in physics class.

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.

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

He is leading a very healthy life.

The sky is clear and blue today as well.