Mr. Azama is my best friend.

He was a bit dimwitted, so I had to repeat the explanation several times.

I really think he's a dimwit.

The summer vacation ended in the blink of an eye.

The train will arrive soon.

Interracial marriage promotes diversity and understanding.

Intermolecular forces are an important factor in determining the properties of a substance.

He is doing special exercises to strengthen the interosseous muscles of his hand.

The mesentery plays a role in supporting the intestines.

His work progress is slow.