别漏了“中美洲”.美洲分为北美洲、中美洲和南美洲.见下面解释:
America[forAmerigoVespucci],thelandsoftheWesternHemisphere—NorthAmerica,Central(orMiddle)America,andSouthAmerica.Theworldmappublishedin1507byMartinWaldseemülleristhefirstknowncartographicuseofthename.InEnglish,AmericaandAmericanarefrequentlyusedtoreferonlytotheUnitedStates.