单词 | 集合物 |
例句 | DEFINITIVE EXAMPLES 权威例句〔ore〕A mineral or an aggregate of minerals from which a valuable constituent, especially a metal, can be profitably mined or extracted.矿石:一种矿物或多种矿物的集合物,从中可采探或提取出在经济上有价值的成分,尤指金属美国传统 |
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