This contract prohibits interference by a third party.

In our company, we always adhere to the principle of safety first.

The Neogene period is a part of the geological era, which lasted from about 23 million years ago to about 2.6 million years ago.

The Paleogene period was a very important time in the history of the Earth.

The Quaternary is the most recent era in Earth's history.

He is said to have a sharp sixth sense.

On the seventh day of creation, God finished all his work and rested.

He prefers to drink third-category beer.

I often drink third-category beer.

I am a member of the Third International.