grind away

• • 不断地碾磨；不停地磨碎：

    This old mill has been grinding away for over 50 years.

    这个老磨坊已经辗磨了50年。

  • 磨坏；磨损：

    The steps have been ground away by the passing feet of many visitors over the centuries.

    这些台阶经过许多世纪游客的踩踏，已经磨损。