My tooth hurts.

By looking at the age of the teeth, you can tell the lifespan of an elephant.

Please don't forget to brush your teeth every day.

It's important to brush your teeth every day using toothpaste.

He is making an effort to polish his manhood every day to improve himself.

He is using that coat from winter to spring.

You need to use your head to solve this problem.

A mouse came into my room.

This festival is always crowded with a large number of people.

He stood in the kitchen to knead the bread dough.