The English introduction to the United States should be translated into Chinese, and it should be concise.

The United States of America (USA) is a constitutional federal republic composed of 50 states and Washington, D.C. It borders the Atlantic Ocean in the east, the Pacific Ocean in the west, Canada in the north, Mexico in the south, Alaska in the northwest of the North American continent, Hawaii in the middle of the Pacific Ocean, Puerto Rico, the Northern Mariana Islands and overseas territories. 1776 On July 4th, the Continental Congress in Philadelphia adopted the Declaration of Independence, proclaiming the birth of the United States. The United States is a multi-cultural and multi-ethnic country and one of the hottest immigrant countries in the world. The United States is one of the five permanent members of the United Nations Security Council. After decades of cold war, the Soviet Union became the only superpower in the world after its disintegration, and its economy, politics, science and technology, military affairs, entertainment and many other aspects.

The United States of America (USA) is a constitutional federal system consisting of 50 states and Washington, D.C.. It borders the Atlantic Ocean in the east, the Pacific Ocean in the west, Canada in the north and Mexico in the south. Alaska is located in the northwest of the North American continent, Hawaii is an archipelago in the central Pacific Ocean, and there are other overseas territories such as Puerto Rico and the Northern Mariana Islands. 1776 On July 4th, the Continental Congress adopted the Declaration of Independence in Philadelphia, proclaiming the birth of the United States. The United States is a multicultural and multi-ethnic country and one of the most popular immigrant countries in the world. The United States is one of the five permanent members of the United Nations Security Council. After decades of cold war, it became the only superpower in the world after the disintegration of the Soviet Union, and its great influence in many fields such as economy, politics, science and technology, military affairs and entertainment led the world.