- United States - Wikipedia
The United States of America (USA), also known as the United States (U S ) or America, is a country primarily located in North America It is a federal republic of 50 states and a federal capital district, Washington, D C
- 美国到底是“US”还是“USA”还是“America”? - 知乎
US是United States的缩写，称为“合众国”，前面要加the做限定，写成the United States或theU S 。 United States (US)是对美国最传统和正式的说法。
- United States - The World Factbook
The United States entry in The World Factbook provides a comprehensive overview of the country's geography, people, society, government, economy, and more
- United States Facts | Britannica
The United States is a country in North America that is a federal republic of 50 states Besides the 48 conterminous states that occupy the middle latitudes of the continent, the United States includes the state of Alaska, at the northwestern extreme of North America, and the island state of Hawaii, in the mid-Pacific Ocean
- United States Map - World Atlas
The United States, officially known as the United States of America (USA), shares its borders with Canada to the north and Mexico to the south To the east lies the vast Atlantic Ocean, while the equally expansive Pacific Ocean borders the western coastline
- U. S. facts and figures - USAGov
Learn about the United States, including American holidays, the American flag, presidents, census data, and the U S Constitution
- U. S. 、USA、America 有什么区别？ - 知乎
USA是美利坚合众国（United States of America）全称的缩写，但它的应用度远没有U S 广泛，而且一般比较少有U S A 的缩略用法。
- A Country Profile - Destination USA - Nations Online Project
The United States has a population of 337 million people, (in 2024); it is the most populous country in all of the Americas Its capital is Washington D C , formally the District of Columbia The largest US city is New York Spoken languages are English 80%, and Spanish 13% What is the United States famous for?
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