He is a vain person, so he always wears expensive clothes.

On cold days, earmuffs are necessary.

This area is still undeveloped and rich in nature.

This area is still undeveloped, and nature is abundant.

This sentence is written in the present tense.

He is doing special exercises to strengthen his supraspinatus muscle.

By training the superior oblique muscle, there is a possibility that your eyesight can be improved.

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.