He was supposed to report about his character.

The house over there is very big.

I have been to Potsdam.

What does this line mean?

He believes in Darwin's theory of evolution.

Mukai is my best friend.

He exercises his vastus lateralis muscle at the gym every day.

He is doing special exercises to strengthen his vastus medialis muscle.

By training the orbicularis oris muscle, your expressions become more expressive.

The internal anal sphincter is a muscle that helps us control defecation.