(一).I'm working 24-7. 我每天工作24个小时，—周工作7天.

原音重现：

A：Why haven't you completed the writing assignment?

你怎么没完成写作?

B: It's very difficult. I'm working 27-7 to get it all done.

太难了，为了完成它，我已经不眠不休了

(二). It's a one-day job, max.最多需要一天

原音重现：A: How long does it take to replace a house's heater?

换家里的热水器需要多长时间?

B: Not so long. It's a one-day job, max.

不需要太久，最多一天吧。