I'm frustrated that I can't eat for two days.

我两天都不能吃饭了，我真郁闷。

I'm frustrated 实战 - SpeakingMax英语口语达人

What you'll do is every day for the next 30 days give me one cent, next day two, four, eight and so on.

你们要做的是在未来30天给我一分钱，第二天二分，然后是四分，八分，以此类推。

哈佛公开课 - 幸福课课程节选

that I can only drink water for two days.

这两天我都只能喝水了。

I'm frustrated 实战 - SpeakingMax英语口语达人

So I just buy what I'm going to eat for like one or two days.

我买点儿够我吃一两天的东西。

在绿色市场 - SpeakingMax英语口语达人