They were going to work there at their desks all that day and the next and the next and half a day on Saturday.

VOA: special.2010.01.30

Let's say that you've been at work all day and you are really tired.

假设你已经工作了一整天，你已经精疲力尽了。

so that 课堂 - SpeakingMax英语口语达人