名词
中文翻译：Unknown
同义词：
['roller', 'roller truck', 'roll-up car']
例句：
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1. The roller truck is used for moving heavy loads.
滚轮卡车用于搬运重物。
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2. Roller trucks are efficient for transporting goods in large quantities.
滚轮卡车在运输大量货物时效率高。
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3. Roll up your sleeves and get ready to roll the caravan.
卷起袖子，准备启动拖车。