Please stand in the center position.

He is afflicted with a serious illness.

The Yi were an ancient tribe in eastern China.

The geology of this area is mainly composed of aqueous rocks.

This area is rich in peridotite.

He moved his eyeballs to look at me.

He was observing the distant birds with binoculars.

His stubbornness sometimes causes problems.

He acted shamelessly.

I was surprised by his shameless behavior.