“磨平”的英语可以翻译为：planish，wear down，rubdown ...

这些崎岖不平的路很快就把摩托车轮胎磨平了.These rough roads soon wore the tread of motorcycle tires off.抽烟斗的人用牙齿咬住烟斗，有时会把齿尖磨平。Pipe smokers sometimes wear down the tips of their teeth where they grip their pipes.如果马掌磨薄或磨平，就需要换新马掌了。Your horse ...