The cricothyroid muscle is an important muscle for adjusting the tension of the vocal cords.

Regulating this machine is difficult.

He used the air conditioner remote to regulate the room temperature.

He damaged his vocal cords and temporarily lost his ability to speak.

He is working out his muscles at the gym every day.

This circular road smoothens the flow of traffic.

His excitement is always high.

I noticed that my thyroid has gotten a little bigger.

Health is very important.

His opinion is very important.