名词
中文翻译：金属硬币
同义词：
['coin', 'currency', 'token']
例句：
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1.She was given a shiny metallic coin as a reward for her hard work.
她因辛勤工作获得了一枚闪亮的金属硬币作为奖励。
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2.The old man kept his old metallic coin safe in his wallet.
老人把他那枚旧金属币安全地保存在他的钱包里。
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3. The museum exhibits a variety of metallic coins from different eras.
博物馆展示了各种不同时代的金属硬币。