To find the answer one has to look into the European economic history, to look at how the European countries became so rich.
为了找到答案之一，翻开欧洲经济史，看看欧洲国家是如何变得如此富有。
"No one has a good answer" as to why fertility varies among countries, says sociologist Andrew Cherlin of The Johns Hopkins University.
约翰霍普金斯大学的社会学家安德鲁·切尔林说，对于为什么不同国家的生育率不同，“没有人能给出一个好的答案”。
This group answer the questions one by one.
这小组一个接一个回答问题。
Don't answer the questions with one or two words but with one or two sentences.
回答问题不要使用一两个的单词，而要使用完整的句子。
The answer is that no one has an easy fix for rising medical costs.
答案是，没有人能轻而易举地解决不断上涨的医疗费用问题。
DNA teased from these human remains may help answer one of the most puzzling questions in Pacific anthropology: did all Pacific islanders spring from one source or many?
从这些人类遗骸中提取的DNA可能有助于回答太平洋人类学中最令人困惑的问题之一：所有太平洋岛民是来自一个源头，还是不同源头呢？
There's reason to believe that we will get an answer to that piece of the puzzle one day.
我们有理由相信，总有一天，我们会找到这个谜题的答案。
One answer appeared in 1969, when the German researcher and writer Erich von Daniken proposed that the lines were drawn by extraterrestrials as runways for their aircraft.
1969年，德国研究人员兼作家埃里希·冯·丹尼肯提出，这些线条是外星人为它们的飞机绘制的跑道。
What troubled the teacher was that no one present made an answer when asked who had broken the window, so he didn't know who was to blame.
令老师烦恼的是，问起谁打破了窗户时，在场的人没有一个回答，所以他不知道该责怪谁。
It's not obvious how the capacity to visualize objects and to figure out numerical patterns suits one to answer questions that have eluded some of the best poets and philosophers.
视觉化对象并归纳数学规律的能力这样的问题连一些最优秀的诗人和哲学家都无法解答，又如何能让一个人找到那些问题的答案呢？这一点并不明朗。
If you're wondering who would buy the medium soda, the answer is almost no one.
你也许会好奇，买中杯苏打水的是哪些人，答案是几乎没有人买。
We know that the zero does not count as a node, if per se I actually had managed to hit zero in drawing that, the correct answer would be the bottom one there.
我们知道0不能算作一个节点，如果我确实把零点画成了0，那正确的答案应该是下面的那个。
What the boys were wondering was, would any one answer the knock?
孩子们担心的是，会不会有人来开门呢？
When it has more information, the answer will be much closer to the perfect one.
当它有更多的信息时，答案就会更接近于完美。
One of the ten information specialists will answer your question even if the question has multiple parts, and even if you're missing some key information.
即使问题涉及多个方面，即使你遗漏了一些关键信息，十位信息专家中的一位也会回答你的问题。
If your answer is about one hour, then maybe you are one of the happiest teenagers in the world.
如果你的答案是大约一个小时，那么也许你是世界上最快乐的青少年之一。
没人知晓这个答案。
The answer is for each one of us to transform the fear, anger, and despair which we cover-up with over-consumption.
对我们每个人来说，解决的方法是转变因过度消费而掩盖了的恐惧、愤怒和绝望。
Don't answer the questions with one or two words- answer with one or two sentences.
回答问题不要使用一两个鼓励的单词，而要使用完整的句子。
I don't know the answer to that one; I've been too busy considering another "reality-based" question.
我不知道这个问题的答案，我在忙着研究另一个基于现实的问题。
The short answer is: no one knows.
答案很短：没人知道。
The user is then asked to read both words. If they solve the one for which the answer is known, the system assumes their answer is correct for the new one.
如果他们正确给出了那个已知答案的字符，那么系统则认为用户对新字符的识别也是正确的。
"Rupert doesn't ask questions to which he doesn't already know the answer," says one fellow media mogul.
“鲁珀特不问那些答案不明的问题。”一位传媒大亨说道。
What I'm asking is this: "Do you want the sincere answer, or the glossed-over one?
我所问的实际上是：“你是想要一个真实的答案还是要一个粉饰过的答案？
The surprising answer is: not the right one.
令人惊讶的答案是：不正确的。
In one country the answer appears to be yes.
在一个国家中却有着肯定的答案。
I can already tell you the answer: the easy one.
我能很明确的告诉你答案：简单的那个。
If they solve the one for which the answer is known, the system assumes their answer is correct for the new one.
如果答案已知的单词被正确输入，那么系统假设新的单词也是正确的。
On one level, the answer is obvious.
从某个层面说，答案显而易见。
We can't answer one without answering the other.
回答不了这个问题，也就回答不了前一个问题。
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