He was sitting alone in the room, feeling lonely.

He specializes in handling explosives.

This cloth becomes whitened when exposed to the sun.

I hung the laundry under the sun to whiten it by exposure.

The number of downloads for this app has explosively increased.

When he gets stressed, he starts binge eating.

He is gargling.

This new product had intense sales from the first day.

He pulled the stage curtain.

The membrane of this cell is very thin.