名词
中文翻译：Unknown
同义词：
['defunct coins', 'discarded coins', 'abandoned coins例句：1. The old coins were defaced and lost their value.（这些旧硬币被弃置，失去了价值。）']
例句：
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1. The old coins were defaced and lost their value.
这些旧硬币被弃置，失去了价值。
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2.The museum has a collection of defunct coins from the 19th century.
博物馆收藏着19世纪废弃的硬币。
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3. The old coins have been defaced and are now worthless.
这些旧硬币已经被弃置，现在毫无价值。