名词
中文翻译：商品交换
同义词：
['exchange', 'market', 'bazaar', 'fair', 'marketplace']
例句：
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1. The commodity exchange is located in the heart of the city.
商品交易所位于市中心。
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2. The farmers are selling their produce at the commodity exchange.
农民们正在商品交易所出售他们的农产品。
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3. The commodity exchange was a bustling hub of activity during the festival.
商品交易所在节日期间是一个繁忙的活动中心。