动词
中文翻译：硬币
同义词：
['penny', 'dime', 'quarter']
例句：
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1. She spent the entire day collecting coins for charity.
她花了一整天的时间收集硬币为慈善事业。
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2. The old man used to coin his own money in the old days.
这位老人过去常常自己铸钱。
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3. The museum has a collection of rare coins from around the world.
这个博物馆收藏着来自世界各地的稀有硬币。