详细解释:美国, 合众国
词型变化：
异体字:UnStates:of:America:英语解释：
名词 united states:
North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776同义词：United States of America, America, the States, US, U.S., USA, U.S.A.