名词
中文翻译：按年度计算的费率
同义词：
['annual rate', 'annual charge', 'annual fee']
例句：
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1.The company charges a higher rate for its premium plans.
该公司对其高级计划收取更高的费用。
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2.The cost of living in this area is much higher than the national average.
该地区的生活成本远高于全国平均水平。
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3. The government has introduced a new tax rate to help fund public services.
政府已经引入了新的税率，以资助公共服务。