He tried to solve the problem all day long.

One side of the park was covered with beautiful flowers.

Let's finish this job for now and then move on to the next.

He learned the basics of Japanese.

This contract prohibits interference by a third party.

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.