名词
中文翻译：滑车
同义词：
['slide', 'ramp', 'chute', 'trough']
例句：
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1. The car was stuck in the mud and couldn't move forward.
汽车陷在泥里出不来。
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2. The team had to use the sled to get across the frozen lake.
队伍不得不使用雪橇过冰冻的湖面。
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3. The engineer designed a new sled for the winter Olympics.
工程师为冬季奥运会设计了一种新型雪橇。