The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.[fn 6] At 3.8 million square miles (9.8 million km2), the United States is the world's third- or fourth-largest country by total area[fn 7] and just fractionally smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 325 million people, the U.S. is the third-most populous country. The capital is Washington, D.C., and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico. The State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean. The U.S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The extremely diverse geography, climate, and wildlife of the United States make it one of the world's 17 megadiverse countries.[19]

美利坚合众国（美国），通常被称为美国，是一个联邦共和国，由50个州、一个联邦区、五个主要自治领土和各种财产组成。世界第三或第四大国家，总面积962.9091万平方公里，略小于整个欧洲大陆的1016万平方英里。美国人口超过3亿2500万人，是第三人口最多的国家。首都是位于D.C.的华盛顿，人口最多的城市是纽约。四十八个州和首都的联邦区在加拿大和墨西哥之间毗连在北美洲。阿拉斯加州位于北美西北角，东与加拿大接壤，西与俄罗斯隔白令海峡。夏威夷州是太平洋中部的一个群岛。美国领土分布在太平洋和加勒比海，横跨9个官方时区。美国极其多样的地理、气候和野生动物使它成为世界上17个超级大国之一。

Haizhu Internet City and Exchange Building International Platform
FlagshipWebsite———— United States

Website Name：American


URL：http://American.good131819.cn/


开始时间：2018-04-22
结束时间：2050-04-22