动词短语中文翻译
中文翻译：Unknown
同义词：
['keep flat', 'level out', 'make flat']
例句：
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1. The car was left flat on the side of the road after the accident.
事故后，汽车停在路边变得平坦。
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2. He leveled out the surface of the road with a shovel.
他用铲子平整了路面。
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3. She made the bed flat before she went to bed.
她上床前把床铺得平整。