The crescent moon is floating in the sky, it's very beautiful.

The government declared a state of emergency to prevent the spread of the new coronavirus.

It is thirty-three kilometers to my house.

Orthoclase is a type of mineral, mainly found in granite.

There are more than a billion quintillion stars in this galaxy.

The cathode of this battery is made of copper.

These two variables are in a proportional relationship.

These two variables vary directly.

Masashi is my best friend.

He is studying the Christian canon.