Please open this opaque sliding door and take a look at the room.

Chrysophyta perform photosynthesis underwater, supplying oxygen.

Zhenzong was a great emperor of China.

The United Kingdom of Great Britain and Northern Ireland is a country located in Europe.

The North American Aerospace Defense Command is responsible for the aerospace defense of North America.

There are a few problems.

Let's calculate so that all numbers become equal.

The bird is making a nest in the tree.

He broke the glass.

Her slender fingers are suitable for playing the piano.