He is a mayonnaise freak, always slathering plenty of mayonnaise on his sandwiches.

This old radio uses a tetrode.

My father is forty-one years old.

This city with its beautiful night view is my favorite.

The moon has risen, and it's time to return the robe of night.

Old English is a language that was spoken in England from the 5th to the 12th century.

He vowed to live through this world and the next with the spirit of once-in-a-lifetime encounter.

General relativity is a theory of physics proposed by Einstein.

Special relativity is one of the fundamental theories of physics.

He rejoiced when he heard about the success.