名词
中文翻译：铁路网
同义词：
['rail network', 'railway network']
例句：
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1. Theengineers are working on the construction ofa new railway network.
工程师们正在建设一个新的铁路网络。
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2. The railway network connectsseveral cities in the region.
这个铁路网络连接了该地区的几个城市。
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3. Therailway network is essential fortransportation between different regions.
铁路网络对于不同地区之间的交通至关重要。