名词
中文翻译：辅币
同义词：
['coin', 'currency', 'unit of currency']
例句：
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1. The bank issued a new note as a substitute for the old one.
银行发行了新的钞票作为旧钞票的替代品。
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2. The government introduced a new currency to boost economic growth.
政府引入了一种新的货币以促进经济增长。
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3. The exchange rate is determined by the value of the currencies involved.
汇率由涉及的货币的价值决定。