名词
中文翻译：Unknown
同义词：
['telephone line', 'telephone wire']
例句：
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1.The engineer was fixing the phone line in the basement.
工程师正在修理地下室的电话线。
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2.They used to connect their phones with each other's lines.
他们过去曾经互相连接电话线。
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3. The company decided to upgrade its phone lines to improve customer service.
公司决定升级电话线以改善客户服务。