英语词汇“precious metal”是什么意思，“precious metal”的读音、用法及例句翻译-烛光网

词汇	precious metal
释义	precious metaln.（名词） Any of several metals, including gold and platinum, that have high economic value.贵重金属：多种具有高经济价值的金属，包括黄金和白金
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