名词
中文翻译：金属币
同义词：
['coin', 'currency', 'denomination例句：1. The old man spent his last few days counting his metayages.（老人用最后几天数他的硬币。）']
例句：
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1. The old man spent his last few days counting his metayages.
老人用最后几天数他的硬币。
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2.He found a small metal coin in the pocket of his coat.
他在外套口袋里发现了一枚小金属币。
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3. The ancient civilizations used metal as their primary currency.
古代文明使用金属作为他们的货币。