We adopted the AA system to start a new project.

We need to check the relevance of this data.

His character is very kind.

My brother is a graduate student at the University of Tokyo.

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.