名词
中文翻译：费率
同义词：
['rate of charge', 'charging rate', 'cost rate']
例句：
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1. Thecompany's profit margin is the charge rate on its products.
公司的利润率是其产品的费率。
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2. The battery has a high charge rate, which means it can be charged quickly.
电池的充电率高，这意味着它可以快速充电。
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3.The new policy will increase the charge rate for imported goods.
新政策将提高进口商品的费率。