动词
中文翻译：使平坦
同义词：
['equalize', 'level out', 'level off']
例句：
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1. The road needs to be leveled before it can be paved.
道路需要平整后才能铺设。
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2. The water level has risen due to the heavy rain.
由于大雨，水位上升了。
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3. The engineer leveled the slope of the hill.
工程师把山坡修平了。