名词
中文翻译：Unknown
同义词：
['stock', 'inventory', 'stockpile']
例句：
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1. The store needs to update its inventory regularly.
这家商店需要定期更新其存货。
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2. The company has a large inventory of products for sale.
该公司有大量待售的产品。
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3. The inventory is being checked to ensure that everything is in order.
正在检查库存以确保一切井然有序。