The European Union is an organization for the economic and political integration of European countries.

I have been to Sinuiju.

Sinuiju is a city in North Korea.

Daihasshu is an ancient place name in Japan.

The discussion about the regional system in Japan is not over yet.

He can speak Teochew language.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.