work away (at)

• • 不停地继续工作，继续干

    They have been working away for more than ten hours in the workshop.

    他们已经在车间里连续干了10个小时。

  • (脸上某部位)抖动：

    His mouth was working away when he was speaking.

    他说话时嘴在不断地颤动。