动词短语
中文翻译：跑砾石
同义词：
['run sand', 'run grit']
例句：
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1.The car ran gravel as it sped down the road.
汽车在公路上飞驰时，碾过了砾石。
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2. He ran gravel to clear the path for his friends.
他跑砾石是为了给朋友们开辟道路。
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3.The truck ran gravel across the bridge, causing a small landslide.
卡车在桥上碾过砾石，导致了一场小滑坡。