In international trade, a country should specialize in the production of goods for which it has a comparative advantage, and trade with other nations to maximize overall economic welfare.

Quality is the soul of our products, and integrity is the foundation of our business.

Coal enterprises must enhance their sense of social responsibility and achieve the unity of economic and social benefits.

There is no escape, only different kinds of prisons.

If you want to understand a system, try changing it.

真正的热情不知道限制或障碍。