He is bad at athletics, especially ball games.

He is collecting centime, the old currency of France.

The level of corticosterone rises due to stress.

My teammate is very helpful.

The steward is conducting a safety check inside the aircraft.

He spent time preparing for the speech.

Polyoxymethylene is a plastic that excels in heat resistance and wear resistance.

This product is made of polystyrol.

We understand that teamplay is necessary for us to succeed.

Once you finish this tutorial, you can acquire a new skill.