我看不出来我们能做什么，并没有多少人会因为Facebook的改版而有什么改变。
I don't see what we can do about Facebook. Not enough people have changed their behaviors due to these changes.
为什么某些液体容易起泡，而有些则不行呢？
这些颜色很瑰丽，但究竟为什么有些树会变成黄色或橙色，而有些树会变成红色或紫色，这个问题一直困扰着科学家。
The colours are magnificent, but the question of exactly why some trees turn yellow or orange, and others red or purple, is something which has long puzzled scientists.
然而，至今仍不完全清楚，为什么有些树木倾向于制造红色素，而有些树木不去刻意制造色素，但还是会呈现出橙色或黄色。
What is still not fully understood, however, is why some trees resort to producing red pigments while others don't bother, and simply reveal their orange or yellow hues.
在测试过程中，这些人得到了各种各样的早餐，而有些人压根什么早餐也没得到。
During the test, these people were given all kinds of breakfast, and some got no breakfast at all.
这是一个有趣的问题，人们可以对应该有什么解决办法而有不同的尝试。
This is an interesting problem and people have different takes on what the solution should be.
基因同样决定我们是否能看到事物好的一面，帮助我们解释为什么有些人在前行中充满活力而有些人却只是抱怨的机器。
Our genes also help determine whether we look on the bright side, helping explain why some people have a spring in their step, while others like nothing better than a good grumble.
地上，树上——为什么不是二者皆而有之呢？
有些社交恐惧症是家族遗传，但没有人能真正说清楚为什么有些人有而有些人又没有。
Social phobia sometimes runs in families, but no one knows for sure why some people have it, while others don't.
我们仍不清楚为什么一些面对巨大挑战的女性患上抑郁症，而有些同样面对却没有患上。
It is still unclear, though, why some women faced with enormous challenges develop depression, while others with similar challenges do not.
当我开始浪费更多时间寻找遗失的物品，而不是一个杰出而有创造性的人，我知道我该做些什么了。
When I started wasting more and more time looking for lost items instead of being a brilliant creative person, I knew I had to do something.
为什么有时我们趋向于平衡，而有时我们则将趋一个极端？
Why sometimes we tend to value balance, while otherwise we tend to lean towards one of the ends?
然而有些理论家现在相信他们已经找到能进一步探究的方法，也就是问那个极端问题：宇宙大爆炸之前发生了什么？
Yet some theorists now believe they have found ways of pushing back even further, to the ultimate question: what came before the big bang?
这就意味着即使平均增长水平很低，有的员工也能够得到大幅的加薪，而有的员工可能什么都得不到。
This means that even with the low average increase, some employees are getting larger raises — and some are getting none at all.
为什么有些和弦甜美动听而有些则不堪入耳呢？
假如说这个故事有什么寓意的话，也许它说明了生活有时是在模仿动画片，而有时动画片又是在模仿生活。
If there is a moral to the story, it may be that sometimes life imitates cartoons, or perhaps the other way around.
这就是为什么当有些人开始跑步的时候却发现他们的体重没有下降反而有所上升的一个原因。
It's one reason why some people find themselves not losing weight or even gaining weight when they start running.
为什么健身对于身体健康的人而言更加容易？现在，科学家们认为他们找到了原因——即便因为疏于锻炼而有所退化，肌肉也能够记住它们从前的健康状态。
Pumping up is easier for people who have been buff before, and now scientists think they know why — muscles retain a memory of their former fitness even as they wither from lack of use.
为什么有些书被选上而有些没被选上？
对于人生，她们目光更远——有时她们知道什么时候应该牺牲，而有时她们又会抓住机会去弥补逝去的时光。
They see their life in a broader landscape - sometimes they know they have to sacrifice, and sometimes, they will have opportunity to make up for the loss time.
研究人员称，用基因解释为什么有些人朋友众多而有些人却寡朋少友其实并不新鲜，不过他们的研究更深入一些。
While it may come as no surprise that genes may help explain why some people have many friends and others have few, the researchers said, their findings go just a little farther than that.
首席作者沃夫冈。利特克说：“我们现在总算明白了为什么有些人在受污染的地方能保持相当好的健康情况而有些人却没办法。”
"We gained insight into why some people can remain relatively healthy in polluted areas and why others don't," said lead author Wolfgang Liedtke, m.d..
同样的疾病，相似的医疗手段，为什么有的患者就能够康复，而有的却病情迅速恶化而致死？即使是最有才华的医生也不能给出完美的答案。
Even the most gifted physician can't always tell us why some people recover, while others with the same illness, and similar mitigating factors, quickly deteriorate and die.
为什么有些人能积极应对，而有些人则不能？
为什么有些人能积极应对，而有些人则不能？
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