名词
中文翻译：活线
同义词：
['live wire', 'main wire', 'powerline']
例句：
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1. The electriccompany is responsible for maintaining the live wires in the area.
电力公司负责维护该地区的电线。
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2. The police were called toinvestigate a live wire that had fallen intothe street.
警方被召来调查一根掉入街道的电线。
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3. Theengineer was working on alive wire when he accidentally touchedit with his hand.
工程师在工作时不小心触摸了一根电线。