Shops are open; people are at work. But many Poles are also asking questions such as why so many of the country's political leaders were traveling on one plane and why, if as Russian authorities say, the pilot ignored warnings against trying to land in poor weather conditions.

VOA: standard.2010.04.12

And check the answers, and say yeah that's what we expected. But it also involves reasoning. About why that's an appropriate set of inputs to test it on it.

然后说对，这就是我想要的结果,但是它跟推理也有关系,表现在关于为什么这是一个,测试我们程序的适合的输入集。

麻省理工公开课 - 计算机科学及编程导论课程节选

You'll also see in a little while why both of these things would work this way, but it's not what I wanted. OK?

我应该把括弧,而不是方括号放在这里，你们稍后就会,明白为什么这两个符号在这里都是行得通的？

麻省理工公开课 - 计算机科学及编程导论课程节选

But it's also important to understand what's in foods and that's why food labels are so important.

另外,了解食物里面有些什么也很重要,因此食品标签很有用

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And I think sometimes people think I'm staring at them, and the young wowen think I'm going to persue them, but which is not true, and the others also wonder why is he staring at me.

我想有时候人们会认为,我在盯着他们看，年轻女子认为我想追求她们，但这不是真的，而其他人也在好奇为什么他要盯着我们看。

麻省理工公开课 - 电影哲学课程节选

That explains, in large part, why there was such a decline in population, why the Dark Ages were so dark, lots of poverty, lots of starvation, but also, as I suggested when I spoke of this earlier, also the freedom if you could make it, to learn and also to grow stronger.

这解释了,在绝大部分地区,为什么存在着这一类的人口消减,为什么黑暗时代如此黑暗,如此贫困,如此多的饥荒,但是同时,就如在我之前所提到的,同样可以,如果做得到的话,去学习以及使自身强大

耶鲁公开课 - 古希腊历史简介课程节选

It's important to understand the ancestral diet to see why we've evolved, the biological reasons we are the humans we are today, but it also helps instruct us about what we might happen to do.

了解祖先的饮食结构非常重要,它帮助我们理解人类为何演化,找出造成我们现状的生物学成因,这也有助于我们找到应对方法

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选