Of the bigger stocks in the Dow, Alcoa declined most, falling more than 6 %.在道琼斯工业平均指数的大型成份股中, Alcoa的跌幅最大, 下挫逾6%.Alcoa Aspires to be the best company in the world.美铝立志成为世界上最好的公司.Fig. 1 shows projected weight savings base...

耐蚀铝合金，[地名] [美国] 阿尔科阿...

Alcoa的音标：...

chalcoalumite的音标：chalcoalumite的英式发音音标为：[kælkəʊ'ljʊmaɪt]chalcoalumite的美式发音音标为：[kælkoʊ'ljʊmaɪt]...

n.铜明矾...