He is doing special exercises to strengthen his superior rectus muscle.

The superior gemellus muscle is a part of the human body, mainly supporting movements from the waist to the knee.

Water training on the tatami is a traditional Japanese practice method.

The great majority of people are in favor of this plan.

My older brother is attending a college in Tokyo.

He has a full-size model of a dinosaur in his room.

He remembered something funny and let out a guffaw.

He guffawed after hearing a funny joke.

The bull shark is known for its ability to live in freshwater.

In female anatomy, the labia majora is a part of the external genitalia.