名词
中文翻译：楼梯台阶成本
同义词：
['staircase cost', 'stairway cost例句：1. The architect estimated the construction of the new building would cost $2 million.（建筑师估计这座新建筑的建造成本为200万美元。）']
例句：
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1. The architect estimated the construction of the new building would cost $2 million.
建筑师估计这座新建筑的建造成本为200万美元。
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2.The company spent a significant amount on marketing its latest product.
该公司在营销其最新产品上投入了大量资金。
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3. The cost of living in this area is significantly higher than in other parts of the city.
这个地区的生活成本比城市其他部分高出很多。