名词
中文翻译：Unknown
同义词：
['gross profit', 'gross margin']
例句：
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1. The company's gross margin has been declining over the past year.
该公司的毛利润率过去一年一直在下降。
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2. The gross margin is an important metric for evaluating a product's performance.
毛利润率是评估产品性能的一个重要指标。
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3. The gross margin of the new product line is expected to be higher than its competitors.
预计新产品线的毛利润率将高于竞争对手。