名词
中文翻译：班级成本
同义词：
['classification', 'costing of class', 'class costing']
例句：
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1. The teacher needs to calculate the class cost before the start of the new semester.
老师需要在新学期开始前计算班级成本。
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2. The company is conducting a costing analysis to determine the best way to classify its products.
公司正在进行成本分析，以确定最佳方式对其产品进行分类。
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3. The costing of the new product has been calculated and it will be more expensive than the previous model.
新产品的成本已经被计算出来，它将比之前的型号更贵。