如果我们可以对陌生人礼貌，为什么我们不能对我们所爱的人礼貌呢？
If we can be polite to strangers, why can't we do the same for the ones we love?
有什么可以解释为什么只要我们不转移大脑的两个半球通常就足够了？
What could possibly explain why either hemisphere of the brain would normally be enough, as long as we don't transfer both?
如果每天骑自行车可以让你更健康，为什么不承诺每天坚持骑车，过上更健康的生活呢？
If cycling each day can make you healthier, why not commit yourself to it and have a better life?
关于为什么进屋之前应该脱鞋，我可以提供几个很好的理由。
I can give you several good reasons why people should remove their shoes before going inside their homes.
我们问一些非常局限的问题，这就是为什么我们炫耀自己可以多么准确地预测未来。
We ask very limited questions, which is why we brag about how accurately we can predict the future.
但我们为什么不能暂且坚持我们可以从中学到的东西呢？
But for now why don't we just stick with what we can learn from it?
他们的废品追踪技术意味着餐饮公司可以看到有多少食物正在被浪费，以及它们为什么被浪费。
Their waste tracking technology means that caterers can see how much food is being wasted and why.
与其纠结自己本可以做得更好，为什么不给自己一个有同情心的回答？
Rather than getting caught up in how you could have done better, why not offer yourself a compassionate response?
他们建造的房子可以对抗龙卷风，这就是为什么它有一个不寻常的形状。
They're making the house that can fight against tornadoes that's why it has an unusual shape.
一组研究人员开始调查，收集皮肤样本，记录任何可以帮助他们回答关键问题的东西：为什么？
A team of researchers begins to investigate, collecting skin samples for instance, recording anything that could help them answer the crucial question: why?
你们可以设想一下，这里有个有趣的地方：为什么在这个图案中跳过了2.8个点？
You can imagine that there was some interest in why the 2.8 spot in the pattern was skipped.
既然你可以驾车，或者更好一点，坐飞机，为什么还要骑几百英里的自行车？
Why ride hundreds of miles on a bicycle when you can drive in a car, or better yet fly in a plane?
你每30年就得把所有东西提高30厘米左右，那么为什么不建造一座可以漂浮的房子来简化这项工作呢？
You would have to raise everything about 30 centimeters once every 30 years, so why not make the job easier by making houses that can float.
如果你可以从你的国家消除一个古老的习俗，你会选择什么，为什么？
If you could eliminate one old custom from your country, which would you choose and why?
这个敲击的动作就可以解释为什么钢琴是打击乐器而不是弦乐器。
This striking action is why the piano is a percussion instrument instead of a string instrument.
大西洋两岸的企业都在问，当一套测试可以解决问题时，为什么需要两套呢？
Ask businesses on both sides of the Atlantic, why have two lots of tests where one would do?
它仍然需要放入一个容器中。这就是为什么更小、更软的容器突然流行起来的部分原因——它们可以被放进背包里。
It still has to go into a container. That is, in part, why smaller and softer containers have taken off.
荷兰瓦赫宁根大学的机器人学研究员 Eldert Henten 表示，还有其他原因可以解释为什么自动化可能是未来的发展方向。
There is another reason to explain why automation may be the way forward according to Eldert Henten, a robotics researcher at Wageningen University in the Netherlands.
仅有一个原因可以解释为什么威尔玛和弗雷德·福林斯能够生活在一起，尽管威尔玛生性有些暴躁，弗雷德也有些粗鲁滑稽。
There is only one reason that a couple like Wilma and Fred Flintstone could stay together, despite her somewhat shrewish nature and his boorish antics.
因此，所有这些都有助于在社区中形成一种从众的态度，你也可以明白为什么这种谦逊的、非常朴素的风格会在新英格兰农村地区被如此广泛地模仿。
So all these help to create an attitude of conformity in the community, and you can see why a modest, a very plain style would have become so widely imitated throughout rural New England.
学生们自己给作业打分：这是日本学校教育中一个很重要的原则，因为它可以学生们看到他们在哪里犯错以及为什么犯错，这样以后就可以避免这些错误。
Pupils mark their own homework: this is an important principle in Japanese schooling as it enables pupils to see where and why they made a mistake, so that these can be avoided in future.
为什么作者说美国农业部本可以通过制定膳食指南从而在应对气候变化方面做出很大贡献？
Why does the author say the USDA could have contributed a lot to lowering the climate cost through its dietary guidelines?
如果你可以只在需要的地方喷洒化学药品，为什么要在整个田地里喷洒呢？
Why dose a whole field with chemicals if you can spray only where they are needed?
他们说，这可以解释为什么女性可以穿着高跟鞋数小时，但脱掉它们时只会经受脚部的疼痛。
They said it could explain why women could wear high heels for hours but experiencing feet ache after removing them.
几十年来，婴儿期遗忘为什么会发生的这个问题一直使心理学家们十分好奇，尤其是在有大量证据表明婴幼儿可以表现出令人印象深刻的记忆能力的情况下。
The question of why infantile amnesia occurs has intrigued psychologists for decades, especially in light of ample evidence that infants and young children can display impressive memory capabilities.
研究者发现，猪流感病毒比普通流感在肺更深部结合，这可以解释为什么它有时是致命的原因。
Researchers discover that the swine flu virus binds far deeper in the lungs than ordinary flu, possibly explaining why it is sometimes fatal.
面对这些积累起来的智慧，问题是为什么这么多的教育工作者认为减少或取消课间休息是可以接受的。
In the face of this accumulated wisdom, the question is why so many educators decided that it is acceptable to reduce or eliminate recess.
由于杏仁核对我们的感觉有至关重要的作用，这一发现或许可以解释为什么很多人认为这些画作如此生动。
Since the amygdala plays a crucial role in our feelings, that finding might explain why many people find these pieces so moving.
研究发现，押韵可以让记东西更简单——这就是为什么孩子们在会阅读之前就能记住不少书的原因。
Studies have found that rhyming makes it easier to remember things—which is why toddlers can memorize some books before they can read them.
在他的世界里，科学可以解释甲虫，荷叶以及蜘蛛网，但却无法解释为什么人们会觉得这些如此美丽。
In his world, science can explain the beetle, the lotus leaf and the spider's web, but not why they appear beautiful to people.
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