He lives in the central part of China.

My friend came from China.

His name is China.

His presence dominated the entire room.

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

He finds it difficult to advance the new project due to bureaucracy.

Feudalism characterized the social system of medieval Europe.

Changes in the social system inevitably occur with time.

Slavery is something that robs human dignity and is absolutely unacceptable.

How did the ancients live?