Native American的复数形式为：Native Americans...

American shares rose, on average, by 38%...美国股票价格平均上涨了38％。Puerto Rico, though it calls itself a Commonwealth, is really a self-governing American colony.波多黎各尽管自称共和国，但实际上是有自治权的美国殖民地。To find out more about cancer warning s...

Americana的音标：Americana的英式发音音标为：[əˌmerɪ'kɑ:nə]Americana的美式发音音标为：[ɑˌmɛri'kɑnɑ]...