名词
中文翻译：库存
同义词：
['stock', 'reserve', 'inventory', 'stockpile']
例句：
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1.The company has a large inventory of new products.
该公司拥有大量新产品的库存。
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2. The inventory levels have been increasing steadily since the beginning of the year.
自年初以来，库存水平一直在稳步上升。
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3. They need to update their inventory regularly to ensure that they have the right supplies on hand.
他们需要定期更新库存，以确保手头有正确的供应品。