wear away

phrasal verb
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wear away | wear something away
  1. to become, or make something become, gradually thinner or smoother through continuous use or rubbing(因重复使用而)变薄,变光滑;磨薄;磨光
    • The inscription on the coin had worn away.铸在这枚硬币上的文字已磨平了。🔊🔊
    • The steps had been worn away by the feet of thousands of pilgrims.成千上万的朝圣者把台阶踏得磨损了。🔊🔊