In the chapter 3, we study why a bank could exist and the problem of instability of micro-structure to introduce a question why a bank needs its reputation in the industry.
第3章从银行为什么存在的问题出发，分析了银行微观结构的不稳定，从而引出为什么银行需要声誉的问题。
我们为什么要研究睡眠？
You may often wonder why we students should study something that has nothing to do with our own lives.
你可能常常会想，为什么我们学生要学一些与我们自己生活无关的东西。
Why, then, should we not study the acquisition of a cognitive structure like language more or less as we study some complex bodily organ?
我们为什么不应当,像研究某些复杂身体器官那样,去或多或少地研究,像语言这样的认知结构的习得
We didn't ask 'Why didn't you get enough rest or sleep?' said Lela McKnight-Eily, an epidemiologist for the Centers for Disease Control and Prevention who led the study.
负责此项研究的美国疾病防控中心的流行病学家莱拉•麦克耐特-艾莉说：“我们并没有提出‘为什么你没有得到足够的休息或者睡眠？’ 这一问题。”
Neither the original Lepper-Iyengar experiments nor the new study appears to be at fault: the results are just different and we don't know why.
无论是莱普-连格最初的实验，还是这项新的研究，似乎没有问题，但结果就是不同，而我们不知道原因何在。
That last finding may be the most revealing of the study — at least in helping to determine why we assign people the identities we do.
最后一项发现可能是该研究最透露实情的——至少有助于确定我们为何如此认同自己的身份。
If we could do a big genetic study, we might learn exactly why that is.
如果我们能做一个大规模的遗传学研究，也许会准确的认识这一点。
Why do we base the study of chance on the world of games?
为什么我们要将几率研究建立在游戏世界中呢？
This gap continues to persist in study after study, and I am not sure why we can’t ever seem to close it.
这一差距出现在一个接一个的研究中，我不明白为什么我们从没不去弥合它。
OK, so let me show you a nice example of why we might want to use vectors to study parametric curves because, after all, a lot of what's here you can just do in coordinates.
我来举个例子，解释为什么我们用向量来学习参数曲线，毕竟我们学了这么多的都只能在坐标上完成。
Why can't we turn heavy study into a pleasant job?
为什么不能把繁重的学习变得轻松而愉快？
Why can’t we turn heavy study into a pleasant job?
为什么不能把繁重的学习变得轻松而愉快？
我们为什么应该学习英语？
This is why we study astrology!
这就是我们学习占星的原因！
What is history? Why should we study history? Because history will be the wisdom of the later generations.
什么是历史？我们为什么要学习历史？因为历史会成为后世的智慧。
Why do we study industrial accounting?
为什么我们学习工业会计呢？
Why we need to study English by watching movies?
为什么我们要通过看电影来学英语？
我们为什么要学习土壤学？
Introduction: What is known; What is unknown; Why we did this study?
引言：什么已知；什么未知；我们为什么做这个研究？
If you want to ask me why we should study English, my answer will be simple and clear.
如果你想要问我我们为什么要学习英语，我的答案简单明了。
我们为什么学习英语？
Why, then, should we not study the acquisition of a cognitive structure like language more or less as we study some complex bodily organ?
我们为什么不应当，像研究某些复杂身体器官那样，去或多或少地研究，像语言这样的认知结构的习得。
The reason why we study English is that it's an international language.
我们必须研读英语的原因是，英文是国际语言。
The reason why we study English is that it's an international language.
我们必须研读英语的原因是，英文是国际语言。
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