名词
中文翻译：左轨
同义词：
['left-hand track例句：1. The train was traveling on the left track when it hit a bump in the road.（火车在左轨上行驶时，撞上了路上的一个坑。）2. The engineer had to switch the train to the right track to avoid hitting the bridge.（工程师不得不把火车换到右侧轨道上，以免撞到桥上。）']
例句：
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1. The train was traveling on the left track when it hit a bump in the road.
火车在左轨上行驶时，撞上了路上的一个坑。
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2. The engineer had to switch the train to the right track to avoid hitting the bridge.
工程师不得不把火车换到右侧轨道上，以免撞到桥上。
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3.The left track is usually used for heavy freight trains, while the right track is for passenger trains.
左侧轨道通常用于重型货运列车，而右侧轨道则用于客运列车。