动词
中文翻译：花费
同义词：
['expense', 'incur', 'entail']
例句：
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1. The cost of the new car is too high for us to afford.
这辆新车的价格对我们来说太高，买不起。
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2. The cost of living has increased significantly over the past year.
过去一年里，生活成本显著上涨。
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3. The company's decision to invest in research and development will have a significant cost.
公司决定投资研究和开发将会产生重大成本。