名词
中文翻译：轻快的火车头
同义词：
['light engine', 'light locomotive']
例句：
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1.The new light locomotive is faster than the old one.
新型轻快火车头比旧型快。
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2. The engineer was pleased with the performance of the light locomotive.
工程师对轻快火车头的性能很满意。
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3. The light locomotive was used to transport goods across the country.
轻快火车头被用来运输货物穿越全国。