The strength of the water in this river is very strong.

He is not at all lazy.

Even if you are rich, you cannot buy everything.

This book is very interesting.

We often have picnics by the river on weekends.

This tree is very hard.

He chose that method against his will.

He is a person with a strong heart.

He finished the job in slightly more than an hour.

Tsuyoshi is my best friend.