dig away

• • [美国口语]刻苦钻研，苦读不止：

    She is digging away at her mathematics lessons.

    她在不停地刻苦钻研数学。

  • 挖掘不止：

    They have been digging away for two hours.

    他们一直挖了两个钟头。

  • 掘倒；挖断；刨断：

    They have dug away that wall.

    他们已把那堵墙掘倒了。