Brazil is the largest country in South America, with an area of about 85 1 10,000 square kilometers and a population of over 2 1 10,000. In today's world, the strength of emerging developing countries cannot be ignored. As a member of BRIC countries (the other four countries are China, Russian Federation, South Africa and India), Brazil has a vast territory and a large population, which is widely regarded by international political scientists as one of the most important powers in the future and one of the important forces influencing the world structure.