动词短语
中文翻译：Unknown
同义词：
['roll up', 'roll out', 'roll back']
例句：
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1. The fireman rolled the ladder down to the fire.
消防员把梯子卷下来到火场。
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2. The car rolled down the hill and stopped at the bottom.
汽车沿着山坡滚下去，停在了底部。
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3. The team rolled back their defenses to catch the ball.
球队卷起防线来接球。