名词
中文翻译：边际贡献比率
同义词：
['marginal contribution rate', 'marginal contribution ratio', 'marginal contribution ratio']
例句：
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1.The company's profit margin is declining due to increased competition.
由于竞争加剧，公司的利润率正在下降。
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2.The manager needs to calculate the marginal contribution ratio to determine how much more revenue they can generate.
经理需要计算边际贡献比率，以确定他们可以额外产生多少收入。
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3. The economist pointed out that the marginal contribution ratio of a new product was crucial for its success.
经济学家指出，新产品的边际贡献比率对其成功至关重要。