名词
中文翻译：销售成本
同义词：
['cost of sales', 'selling expense']
例句：
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1.The company's selling cost is 20% higher than last year's.
公司的销售成本比去年高出20%。
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2.To reduce the selling cost, we need to improve our inventory management system.
为了降低销售成本，我们需要改进我们的库存管理系统。
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3.The selling cost includes not only raw materials but also labor and overhead expenses.
销售成本不仅包括原材料，还包括劳动力和间接费用。