名词
中文翻译：电线
同义词：
['live current', 'live line']
例句：
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1.The power station is a live wire in this area.
这个地区的电站是一条活线。
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2.The policeman was called to the scene as a live wire.
警察被召到现场是因为他是个活线。
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3. He was a live wire of information during the election campaign.
他在选举活动中是一条信息活线。