名词中文翻译
中文翻译：铁轨底部
同义词：
['rail bed', 'rail base']
例句：
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1.The train's wheels were worn down to the rail bottom.
火车的轮子磨损到了铁轨底部。
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2.The workers had to dig deep into the rail bottom to find the hidden treasure.
工人们不得不挖到铁轨底部才能找到隐藏的宝藏。
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3.The train was stuck at the rail bottom due to a sudden dip in the track.
由于轨道突然下陷，火车卡在了铁轨底部。