muddle along (或 on)

• • 混日子，鬼混：

    Jim is still muddling along.

    吉姆仍然在混日子。

  • 糊里糊涂地干；敷衍了事：

    The old teacher was muddling on, and nobody could follow what he was trying to say.

    这位老教师在敷衍了事，谁也听不懂他想说什么。