He is doing a special exercise to strengthen his temporoparietalis muscle.

He goes to the gym every day to train his biceps brachii muscle.

I found a masked lapwing in the park.

He is a successful businessman, but just like the proverb 'the more the rice stalks grow, the more they bow', the more his success grows, the more humble he becomes.

He is acting in a way that is like 'hide the head but forget the tail'.

The clitoral glans is a part of the female genitalia and is very sensitive to sexual stimulation.

The great auk is a species of bird that has become extinct.

My grandfather was a teacher at a national elementary school.

My friend goes to a Korean school.

My younger brother goes to a school for special needs.