名词
中文翻译：Unknown
同义词：
['rail crawl', 'rail crawling例句：1. The train was moving slowly along the tracks.（火车沿着轨道缓慢行驶。）']
例句：
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1. The train was moving slowly along the tracks.
火车沿着轨道缓慢行驶。
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2. The train is crawling along the tracks at a slow pace.
火车正在轨道上缓慢爬行。
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3. The train is crawling along the tracks at a slow pace.
火车正在轨道上缓慢爬行。