The Japanese imperial family line is said to have the longest history in the world.

She often reads books on spirituality.

She is deeply devoted to the New Age spirituality.

He loves 'Narou-kei' novels and reads them every day.

The International System of Units is the standard measurement system used by scientists all over the world.

The International System of Units is a standard of measurement widely used around the world.

The central nervous system is responsible for transmitting information and controlling the body.

Moderate exercise and a balanced diet are important for maintaining the health of the respiratory system.

The peripheral nervous system plays a role in transmitting commands from the central nervous system to various parts of the body.

She started doing yoga to balance her autonomic nervous system.