He is working round the clock.

I use a tram for commuting every day.

Chlorofluoromethane is one of the substances that contribute to the destruction of the ozone layer.

He was reading a book about the Cyclops in Greek mythology.

The great white shark can be called the king of the sea.

The great white shark is also referred to as the king of the sea.

He is majoring in syntax at university.

He is said to have a sharp sixth sense.

In Greek mythology, Apollo was the god of music and prophecy.

In Roman mythology, Apollo was the god of music and prophecy.