She has mastered the technique of facesitting.

He works in the entertainment industry.

He is studying the shape of a tetrahemihexahedron.

He has full mastery of the art of cooking.

This 立方半八面體 is one of the shapes in geometry.

This model of the cubohemioctahedron is very beautiful, isn't it?

This detergent contains a high-quality surfactant.

Mendelssohn's music is very beautiful.

Mr. Sekigami bought a necklace for his wife’s birthday.

He shot an arrow at the target.