名词
中文翻译：铁轨
同义词：
['track', 'railing']
例句：
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1. The train was traveling on the main railway line.
火车正在主要铁路线上行驶。
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2. The engineer had to repair the damaged rails.
工程师不得不修理损坏的钢轨。
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3. The train pulled into the station with a loud rumble of its wheels.
火车发出隆隆声，缓缓驶入车站。