noun 下载 🔗分享 铝土矿, 矾土。 The principal ore of aluminium; a clay-like mineral, being a mixture of hydrated oxides and hydroxides. Examples : "The factory processes bauxite to extract the aluminum used in making soda cans. " 这家工厂加工铝土矿,从中提取铝,用来制造汽水罐。 material geology mineral substance 与AI对话词汇游戏阅读练习