名词
中文翻译：Unknown
同义词：
['superstructure', 'overhead cost', 'overhead expense', 'overhead load']
例句：
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1. The overheadcosts for the new building are astronomical.
新大楼的额外成本天文数字般高。
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2. The overhead cost of operating a factory is a significant expense.
运营工厂的额外成本是一项重大开支。
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3.The overhead load on the roof was too much to bear.
屋顶的额外负担太重了，无法承受。