The grammar of 'Jou-nidan' is an important part in learning Japanese.

My room is on the upper level.

This handover is our new project.

His efforts finally brought about a spectacular result.

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.

The Empire of Japan, written as 大日本帝國 in Kyūjitai, was a nation that existed from 1868 to 1945.