名词
中文翻译：费用
同义词：
['expense', 'charge', 'expense', 'cost']
例句：
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1. The construction project has a high cost.
这个建设项目的成本很高。
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2. The company decided to increase the price of its products to cover the increased cost.
公司决定提高产品价格以覆盖增加的成本。
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3. The cost of living in this area is very high.
这个地区的生活成本非常高。