險 is an old font for 険.

One part is important.

Based on the Air Pollution Control Law, factories must strengthen the management of exhaust gases.

He worked hard to resume the project from suspension.

He tends to run away to avoid problems.

His new painting is being described as a Picasso-style work.

He was working in the rice field wearing a bamboo hat.

The grains of this rice are large, aren't they?

He decided to study abroad in America.

Beta particles have the same charge as electrons.