名词
中文翻译：Unknown
同义词：
['railway', 'railway system', 'rail transit']
例句：
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1. The trainarrived at the station on time.
火车准时到达了车站。
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2. The railway line connects two cities.
这条铁路线连接了两个城市。
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3.The new railway project is expected to improve transportation efficiency.
新的铁路项目预计将提高交通效率。