What is the area of this room?

His achievements are very impressive.

He works digging out coal.

I can't forget the impression when I ate kaiseki for the first time.

He is an expert in petrochemistry.

This beautiful lapis lazuli necklace is my favorite.

She likes collecting gemstones.

He is an expert in chemical analysis.

The police started chasing the criminal.

My mother was surprised when she saw my report card.