The sourness of this lemon is very strong.

This lake is fresh water, and you can drink it.

This drink is high in carbonic acid.

My deep admiration for his art is beyond words.

I deeply admired his talent.

The underground water in this area is very clean and is used as drinking water.

He started a fire using coal.

He is drawing a picture using charcoal.

Mr. Tan is my best friend.

On cold days, cold water is especially delicious.