He joined the demonstration while humming The Internationale.

Our company is promoting the internationalization of our products.

Our company is planning to internationalize our products.

He is an expert in international relations.

Esperanto is one of the most well-known international auxiliary languages.

He deeply believes in the principles of socialism.

Maintaining social order is the responsibility of all of us.

He understands his responsibilities as a working adult.

After graduating from university, you have to prepare to enter the real world.

Changes in the social system inevitably occur with time.