Oligodendrocytes play a role in supporting the nerve cells of the central nervous system.

He keeps a bottle at his favorite bar.

We will go to the flea market on Sunday.

We went to the free market on Sunday.

Austria-Hungary was once an existing empire.

This area used to be a place where people gathered.

Apostrophes are often used in English spelling.

Cars with an idling stop function automatically turn off the engine while waiting for a signal, saving fuel.

This pen is 15 centimeters long.

This pen is 15 centimeters long.