But don't worry about it, it's not, I'm just using it because it's a simpler example than the one I really want to get to, which is knapsack.

但是别担心，我讲这些是因为它比我,真正想讲的问题简单一些，我想讲的是背包问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

You can stop me any time and you should not feel somehow you are stopping the progress of the class.

你可以在任何时候打断我,而且你不必担心,你的问题就会打断课堂的进程

耶鲁公开课 - 基础物理课程节选

And actually on terms of the dollar, I think you gotta be concerned about the dollar. -You do Dollar is our currency.

说到美元这个问题，我认为这才是我们应当担心的，-是吧,美元可是我们的流通货币呢。

斯坦福公开课 - 经济学课程节选

I just told you almonds are not a problem, no worries there.

我刚才告诉过你们了，杏仁不是问题，不用担心它们。

麻省理工公开课 - 化学原理课程节选