Okuno-san is my best friend.

He checked whether he remembered or not.

Bile salts play an important role in the digestion of fats.

This dress is made of batiste.

Nitrogen dioxide is a cause of air pollution.

There is a large beehive in my garden.

Styrene is an important component for the manufacture of plastics.

He is a very famous artist.

I deeply apologized to him.

He made a deep apology.