Zhou is my best friend.

He is majoring in philology at university.

It is important to understand the importance of health.

How did the ancients live?

The creatures of the ancient times were significantly different from the creatures of today.

The culture of classical antiquity has a significant impact on the modern world.

The philosophy of Ancient Greece has a significant influence on modern thinking.

The buildings of Ancient Rome still inspire many people today.

I think your behavior is rude.

I think his behavior is completely rude.