Scientists have advanced many theories about why human beings cry tears.
关于人类为什么哭的时候会流泪，科学家已经提出了很多理论。
Scientists have advanced many theories about why human beings cry tears, none of which has been proved.
科学家提出了许多关于人类为什么哭的理论，但没有一个得到证实。
The reason why we should learn foreign languages is that they have become a vehicle for bringing in advanced ideas, science and technology.
我们之所以要学习外语，是因为它们已成为引进先进思想和科学技术的媒介。
After all, advanced military hardware has to be tested somewhere — why not there?
毕竟，先进的军事装备需要找一个地方进行测试——干嘛不就放在那个地方？
You may wonder: Why would anyone use simple document generation, when more advanced tools (such as copy-and-paste operations) are so easy?
您可能想要知道：为什么更加高级的工具(例如复制粘贴操作)很容易就可以得到，而有人却要使用简单的文件生成操作呢？
This is why most recent Web search engines have abandoned the so-called advanced search feature.
这正是为什么大多数最新的Web搜索引擎放弃了所谓的高级搜索特性的原因。
There are many advanced sensors that would amplify the lens' abilities, but the difficulty lies in integrating them, which is why Parviz and his colleagues have had to engineer their own components.
有许多先进的传感器，可以增强隐形眼镜的能力，但是难就难在如何将它们集成到一起，这也是Parvis和他的同事们不得不亲自动手制作元器件的原因。
There are many advanced sensors that would amplify the lens’ abilities, but the difficulty lies in integrating them, which is why Parvis and his colleagues have had to engineer their own components.
有许多先进的传感器，可以增强隐形眼镜的能力，但是难就难在如何将它们集成到一起，这也是Parvis和他的同事们不得不亲自动手制作元器件的原因。
Published in the journal Neuron, the scientists say this finding helps explain why the blind have such advanced perception of these senses — abilities that far exceed people who can see, they say.
在《神经元》期刊里，科学家陈述道，这个发现能解释为什么盲人的其他感觉器官更加敏锐—他们比常人拥有更强的听觉与触觉能力。
Why You Can't Kill Them: David’s an advanced prototype of a human, so convincing and realistic that he’s almost indistinguishable from every other little boy in the playground.
为何无法抹杀这一形象：大卫是人类进步的典范，所以他的存在可信且真实，因为他与其他在操场上玩耍的小男孩子几乎无异。
Many and elaborate are the explanations advanced for why gold moves.
关于黄金流动的原因，还有许多解释，并且更加详细。
In particular, why did America, home to the world's most advanced financial system, turn foreign credit into the world's most serious post-war bust?
特别是，为什么美国—- - -世界上最先进的金融系统的家园- - - - - -会将外国信贷变成世界上最严重的战后崩盘。
Perhaps that's why scientific understanding of clouds has not advanced as much as might be expected.
也许这就是为什么对云的科学认识并没有人们预期的那样好。
The truth commission is examining how and why more than half the value of loans advanced by the three banks were to just 100 concerns.
真相委员会正在分析为何三大银行经手的贷款其半数以上的贷款额竟然只贷给区区100个公司，而这种情况又是如何造成的。
To understand why, we need to look a little closer as to what exactly is necessary to support adding methods and fields (and even more advanced, changing the inheritance hierarchy).
为了理解这其中的原因，我们需要稍微靠近一点看一看，到底是需要用什么来支持方法和域的添加操作（甚至更深入一些，修改继承的层次结构）。
That is why I thought I should provide a model of it using mathematical formalization, inasmuch as it is the most advanced elaboration we have by which to produce signifierness.
那就是为什么我应该用数学的形式化公式，提供一个真实界的模式，这是我们用来产生意符意义的最先进的建构方法。
Nobody agrees why the Mayans' astonishingly advanced civilisation suddenly collapsed between 750 and 850.
玛雅人有着惊人发达的文明，至于它在公元750至850年间为什么瓦解，人们还没达成共识。
Why: the design is the result of "advanced research" that takes into account the area's surrounding natural sources (water, air, sunlight) to limit energy consumption.
获奖理由：该设计是把该地区周围的自然资源(水、空气、阳光)考虑在内来削减能耗的“先进研究”成果。
This can also understand why now than the most advanced electronic devices have tens of thousands of times the complexity of language, writing, as early as several years ago, has been invented.
这也可以理解为什么比现在最先进的电子仪器也要复杂几万倍的语言、文字，早在几千年前就已经被发明。
Pío is now uprooting trees that are several centuries old. No one knows for certain why it has advanced so far and so fast over the past 80 years.
Pío XI冰川在扩展途中将有几个世纪树龄长的大树连根拔起，没有人知道为什么在过去的80年间它扩张得如此之远，如此之快。
GET FREE ANTIVIRUS SOFTWARE Why: Because attacks on unwitting users are more widespread and tactics are growing more advanced.
获得免费杀毒软件为什么：针对毫不知情用户的攻击正日益普遍，其手段也越来越高明。
We are well aware that many persons reading these messages are new to this type of information, while others are very advanced, which is why we are offering two techniques.
我们十分清楚很多正在读这些信息的人是初次接触这种类型的信息，而其他人则已经很资深了，这就是我们要提供两种技术的原因。
This article attempted to offer an interpretation of the proposition to analyse why Holmes anti-logic, what he actually against, and advanced his argument on the function and limit of law.
本文试图通过对这个命题的解读，分析霍姆斯为什么“反逻辑”，他反对的究竟是什么，他对逻辑在法律中的作用及局限性的认识。
If you have received such a present in advanced, why not put it out on display.
如果您收到了这样一个目前在先进的，为什么不把它列于显示。
The drawback of traditional culture and impact of western advanced culture form the concrete reason why the administrative culture should be transformed.
传统文化的弊端和西方先进文化的冲击构成了行政文化转型的具体原因。
And why aren't you confident Probably because you are reading texts which are too advanced for your present level.
为什么你不自信呢可能是因为你所读的文章超出了你目前的水平。
If he's supposed to be like this super advanced robot why does he keep transforming back into this piece of crap Camero?
如果他真的是那么先进的超级机器人，他干吗要把自己变成这副破烂样儿？
If he's supposed to be like this super advanced robot why does he keep transforming back into this piece of crap Camero?
如果他真的是那么先进的超级机器人，他干吗要把自己变成这副破烂样儿？
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