We muddle along from day to day.

我们一天天地混日子。

I don’t know what he has done, he just bumbles through life.

我不知了些什么事，简直是在混日子。

I wish he would not footle about so much.

我希望不要样混日子。

He dawdled away his time.

在混日子。

It's bad to drone.

混日子是不好的。