bauxite [ˈbɔ:ksaɪt]

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n.铝土矿

a type of rock from which aluminium is produced

Aluminum is made from bauxite. 铝是从铝土矿中提炼出的。
The United States was vulnerable to shortages of chrome, bauxite and platinum. 美国的弱点是缺少铬、矾土和铂。