One is the issuing of $250 billion worth of the IMF reserve currency, called Special Drawing Rights, or SDRs, to nations needing funding against the effects of the global financial downturn.

VOA: standard.2009.04.20

And so you have to go back to the drawing board and realize Bubble Sort or whatever it is you're using just isn't enough to snuff, I need to come up with something more clever.

因此，你必须重新开始,而且会意识到冒泡排序,或你正在使用的方法并不理想，我需要提出一种更好的方法。

哈佛公开课 - 计算机科学课程节选