名词
中文翻译：铁路专线同义词
同义词：
['railway line', 'railway track']
例句：
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1. Therailway special line is a crucial part ofthe transportation network.
铁路专线是交通网络中至关重要的一部分。
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2. The railway special line connects two major cities in the region.
铁路专线将该地区的两个主要城市连接起来。
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3.The railway special line has been upgradedto improve efficiency and safety.
铁路专线已升级，以提高效率和安全性。