This rock is gabbro.

He was arrested for a minor offense.

This wall is made of a special material that causes diffuse reflection.

This material has the property of diffusely reflecting light.

He is not a perfect hero, but rather like an antihero.

This shape is an antiprism.

He was oppressing people through tyranny.

His job is to carry in heavy luggage.

We conduct group activities at school.

Iwao is strong like a big rock, and you can rely on him.