第1个回答 2017-06-18
The United States of America (USA) is the only superpower on this globe now. It is a developed country with diversified cultures such as Asian, European and African. Some people call USA "the melting pot" because of the diversity.
USA has a dominating power over economy, education, policitcs, milatary and culture all around the world. It has advanced industries, ideas and some of the smartest scientist on this earth.
But it also has its own problems such as racial discrimination and the widening gap between the rich and the poor.本回答被提问者和网友采纳