介词短语
中文翻译：在费率上
同义词：
['on the payment rate', 'on the rate of', 'at the rate of']
例句：
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1. The company ischarging a higher rate for its services.
该公司对其服务收取更高的费用。
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2. The price has increased by 5% on the rate of inflation.
通货膨胀率上升了5%，导致价格上涨。
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3. The rate of interest is increasing due to rising oil prices.
由于油价上涨，利率正在上升。