名词中文翻译1
中文翻译：Unknown
同义词：
['proportion', 'ratio', 'margin', 'rate', 'percentage']
例句：
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1. The company's profitmargin is declining due to increasedcompetition.
由于竞争加剧，该公司的利润边际正在下降。
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2. The sales ratio has been increasingsteadily since the beginning of the year.
自年初以来，销售额的比率一直在稳步上升。
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3. The cost ratio of this product ismuch lower than that of its competitors.
这款产品的成本比率远低于竞争对手。