在统计学的意义上，这两个样品没有显著的差异。
The difference between the two samples was not statistically significant.
他没有学习过力学或者工程学。
从经济学的角度来看，说服思想开放的乳品业人士其实没有那么困难。
Convincing open-minded dairy people is actually not that hard when you look at the economics.
流行病学研究发现，广泛性发育障碍（Pervasive Developmental Disorder）孩子和正常孩子相比较并没有更高的胃肠道患病率。
Epidemiological studies have found that children with PDD have no higher prevalence of gastrointestinal tract than normal children.
今天，科学家们的主流观点是，种族是一种没有生物学意义的社会结构。
Today, the mainstream belief among scientists is that race is a social construct without biological meaning.
汤姆，你在考古学课上有没有讨论过放射性碳年代测定法？
Tom, in your archaeology class, did you talk about radiocarbon dating?
如果没有对地球科学的了解——关于风、风暴、气象学的知识，他们甚至不可能起步。
They wouldn't even have been able to get started without earth science understanding—knowledge about wind, storms, meteorology.
我选择了一所小的文科大学学习工程学，这所大学甚至没有开设电气工程类专业。
I chose to study engineering at a small liberal-arts university that doesn't even offer a major in electrical engineering.
“如果没有其他事的话，”教堂司事回答说，“他可以跟我学。”
"If that be all," replied the sexton, "he can learn that with me."
加州大学洛杉矶分校埃及学副教授韦利克·文德里希说：“没有证据证实（古埃及人利用）风筝抬起重物。”
"The evidence for kitelifting is non-existent," says Willeke Wendrich, an associate professor of Egyptology at the University of California, Los Angeles.
直到最近，阿贾依都没有上过学。
我猜想你们是没有机会学吧。
幸好没有分类学警察，所以这种众所周知的苍蝇改成什么名字我们都没有义务去遵照。
Luckily, there is no taxonomic police force, so there is no obligation to abide by any revision to the name of the famous fly.
例︰所以，我们应该了解学英文不能没有字典。
Therefore, we should realize that in learning English we cannot do without a dictionary.
虽然我没有这方面的经验，但我愿意学。
Though I have no experience in this field, I'm willing to learn.
部分问题归结于该计划没有任何实际意义——没有“契约学校”，没有教-学互动，不给学校投钱，甚至没有教改计划。
Part of the problem is that nothing seems to work: not charter schools, not tying teachers to student performance, not throwing money at schools, not even curricula reform.
例如，可以使用“微电子学”这个单词来标记一篇关于微电子学的文章，即使“微电子学”这个术语根本没有出现在文档本身的内容中。
For example, a paper about microelectronics could be tagged with that word — even if the term "microelectronics" does not appear in the content of the document itself.
从这方面来看，经济学没有任何理由因为这场危机进行改变。
In that sense there is no reason why economics should change because of the crisis.
你学英语有没有什么特别的原因？
我学英语语法并没有太多的困难。
如果你的所有关系都完美地演化，你永远没有争论、没有不同意见，甚至没有观点的差异，你永远也学不到任何东西。
If all of your relationships evolved perfectly and you never had any arguments, disagreements, or even differences of opinion, you'd never learn anything.
同样，也没有生物学机理可以说恐惧本身能够导致死亡。
Similarly, there is no biological mechanism by which fear, by itself, can kill.
但我还没有开始学神经学。
虽然我没有上过学，但我的一些兄弟姐妹上过。
保罗没有过分迁就我某些更显异端的经济学思路。
Paul did not indulge some of my more heterodox economic thinking.
暴胀宇宙学中宇宙和宇宙之间的物理法则没有关联。
With inflation there is no connection between the physics of one universe and that of another.
然而，关于身高的遗传学仍然没有被完全了解。
However, the genetics of height are still not completely understood.
然而，关于身高的遗传学仍然没有被完全了解。
However, the genetics of height are still not completely understood.
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