名词
中文翻译：Unknown
同义词：
['dangerous roof', 'hazardous rooftop', 'hazardous roof structure']
例句：
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1. The old building had a hazardous roof that needed immediate repairs.
这座老建筑有一个危险的屋顶，需要立即修理。
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2.The construction workers were instructed to inspect the hazardous rooftop before starting work.
施工人员被指示在开始工作前检查危险的屋顶。
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3. The fire department was called to assess the hazardous roof structure and ensure safety for the residents.
消防部门被召来评估危险的屋顶结构，确保居民的安全。