The National Research and Development Agency plays a crucial role in advancing science and technology.

The semispinalis capitis muscle is a part of the neck muscles, helping to tilt the head backwards.

He injured his semitendinosus muscle.

He injured his semimembranosus muscle.

The semispinalis thoracis muscle is a deep muscle in the back that supports movement from the neck to the waist.

The semispinalis cervicis muscle is a part of the neck muscles, helping to pull the head back.

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

A positive-semidefinite matrix is one of the important concepts in linear algebra.

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

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.