名词
中文翻译：轨道
同义词：
['track', 'rail', 'undertrack例句：1. The lower track is where the trains travel through.（下轨道是火车行驶的地方。）2. The lower track was damaged during the construction.（下轨道在施工时受损了。）']
例句：
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1. The lower track is where the trains travel through.
下轨道是火车行驶的地方。
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2. The lower track was damaged during the construction.
下轨道在施工时受损了。
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3.The lower track is essential for maintaining the railway's safety.
下轨道对于维护铁路安全至关重要。