Akatsuki is my best friend.

Akatsuki is my best friend, always a bright and energetic woman.

Sleeping in the springtime, I ended up sleeping until noon.

The Solar System is composed of eight planets, including Earth.

We installed solar batteries on the roof of our house.

Solar wind affects the Earth's magnetic field.

He was reading a book about the ancient Egyptian sun god.

A solar day is the time it takes for the Earth to orbit around the Sun.

The ocean currents can change due to the effect of the solar tide.

Akiko is my best friend.