The rise and fall of the Roman Empire is a part of history.

Bureaucracy plays an important role in the operation of the government.

In China, a strict birth control policy was implemented at one time.

The manufacturing industry occupies an important part of the economy.

This beautiful cordierite is a part of my gemstone collection.

Scientists are warning that this substance has carcinogenicity.

This software has compatibility with other programs.

We are heading in the northwest direction.

She decided to have plastic surgery to gain confidence.

All members of the uniformed group have undergone rigorous training.