名词
中文翻译：屋顶起重机
同义词：
['屋顶起重机，屋顶起重机，屋顶起重机']
例句：
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1.The roof crane was used to lift the heavy box onto the roof.
屋顶起重机被用来将沉重的箱子搬到屋顶上。
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2.The roof crane was used to inspect the roof for any damage.
屋顶起重机被用来检查屋顶是否有损坏。
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3. The roof crane was used to move the heavy materials from one side of the building to the other.
屋顶起重机被用来将重材料从建筑物的一侧移动到另一侧。