变薄,变光滑;磨薄;磨光
(因重复使用而)变薄,变光滑;磨薄;磨光
to become, or make sth become, gradually thinner or smoother by continuously using or rubbing it
The inscription on the coin had worn away.铸在这枚硬币上的文字已磨平了。
释义来自《牛津高阶英汉双解词典》第 9 版