I mean,how can we say that we want Karzai to do something about his brother's alleged narcotics activities, while apparently the CIA has been paying the same brother?" Former U.S.ambassador to Afghanistan Ronald Neumann tells VOA he believes President Karzai to be a decent man, but points out that he does not have a great deal of actual power outside of Kabul and has to be very careful about alienating some people.

VOA: standard.2009.11.17

I'm gonna ask you to find resources that help inform your opinions about how we can do a better job of building a better learning community.

你们要搜索资料,以便于阐述关于,如何更好地,构建学习社群的观点。

麻省理工公开课 - 媒体、教育、市场课程节选

And then, when I got- I'm also going to count how many comparisons I do, just so I can see how much work I do here, and then notice what it does.

并能看到算法干了些什么-,然后是如果这个索引,比数组的大小小的话，就意味着还没检索到数组的最后。

麻省理工公开课 - 计算机科学及编程导论课程节选

For a minute just assume that we can do this and I'm going to show you how to do it on the next slide.

我们暂时先假设基因已经插入到了质粒里,我会在下一张幻灯片告诉你如何做到

耶鲁公开课 - 生物医学工程探索课程节选

I mean, it's a pity we can't kill people in experiments deliberately anymore, because we need to see how this works, but I can't do it.

我的意思是,很可惜我们不能在试验中故意杀人,只为了搞清其中的原理,我们不能那么做

耶鲁公开课 - 古希腊历史简介课程节选

How do we get from there to the conclusion that I can't believe that I'm going to die, I'm going to cease to exist as a person?

怎样从中得到一个结论,说明我不相信我会死，我会停止作为人而存在？

耶鲁公开课 - 死亡课程节选

I couldn't begin to do that. How much can I hear?

我根本无从下手,我能记住多少

耶鲁公开课 - 聆听音乐课程节选

I can't rely on the user. I want to make sure I get a float in it, so how do I do that?

我想确保这儿我得到的是一个浮点数,我该怎么做呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

I can't see how to do it.

我想不出那样一种生活。

耶鲁公开课 - 死亡课程节选