名词
中文翻译：双胞胎轨道
同义词：
['dual track', 'twin-rail']
例句：
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1.The twin-track railway system is designed to connect the two cities.
双轨铁路系统旨在连接这两个城市。
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2. The twin-track trains are efficient and reliable.
双轨火车既高效又可靠。
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3. The twin-track system has improved transportation between the two cities significantly.
双轨系统显著提高了两个城市之间的交通。