Watching a movie alone is enjoyable.

I have been to Central Africa.

Due to the impact of African swine fever, the price of pork is rising.

Due to the impact of African swine fever, the price of pork is rising.

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

In this experiment, we will use the International System of Units.

We use this coordinate system to locate the position of an object.

We are a part of the Milky Way.

He found her on a dating website.

The ecosystem of this lake is very fragile.