她看着妈妈，好奇地问：“妈妈，为什么你的头发有些是灰色的？”
She looked at her mother and curiously asked, "Why are some of your hairs grey, Mom?"
了解这些限制条件后，我们明白了为什么有些人在齐步走时跟随不同的鼓点行进。
By understanding these constraints, we begin to understand why some people march to a different drumbeat.
我们的基因也帮助决定我们是否看到光明的一面，帮助解释为什么有些人步履轻快。
Our genes also help determine whether we look on the bright side, helping explain why some people have a spring in their step.
西尔贝格德说：“为什么不这样做的一个原因是，有些人对注入产品或商店的某些气味过敏。”
"One reason why not," says Silbergeld, "is that some people are allergic to certain scents pumped into products or stores."
这就是为什么有些中国谚语把感情和一个人的脸色联系起来。
This is why there are some Chinese sayings that connect emotions to the color of one's face.
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.
为什么有些学生遇到困难就放弃了，而另外那些技巧上并无更多过人之处的学生却继续努力学习？
Why do some students give up when they encounter difficulty, whereas others who are no more skilled continue to strive and learn?
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.
为什么有些鲸鱼必须受到保护？
为什么有些习惯比其他的好？
为什么有些人努力为他们的孩子取特别的名字？
Why do some people try hard to pick special names for their babies?
为什么有些人比我们其他人更聪明或更有创造力？
Why is it that some people are so much more intelligent or creative than the rest of us?
他感谢我，并告诉我，有些人在知道他为什么要做这些事时，提出要帮助他。
He thanked me and told me that some people had offered to help him when they knew why he was doing all this.
因此如果所有这些成分基本上都是相同的，为什么有些洗发水会更贵一些？
So if all of these ingredients are basically the same, why are some shampoos more expensive?
我明白为什么，在沉溺成瘾的背景下，有些人说它是件很糟糕的事情。
I understand why, in the context of addiction, some people say it's a bad thing.
这就是为什么有些妈妈如今已不在外工作的原因。
That's why some moms are no longer working outside the home.
为什么对这次海啸受害者有些人却无动于衷？
Why some people are so indifferent to the victims of this tsunami?
这项活动可以帮助我准确地了解我到底有些什么东西，更重要的是，为什么我会有它。
This exercise helps me gain perspective on exactly what I have—and more importantly, why I have it.
在未来你也会对激励做出反应，这也是为什么有些承诺你想遵守可是却没办法做到。
In the future, you too will respond to incentives. That is why there are some promises that you'd like to make but can't.
我不知道为什么有些孩子对父母如此叛逆。
I don't know why some children rebel so strongly against their parents.
为什么一些文化中的辱骂之词,有些辱骂之词与神圣的东西有关？
Why is it that some cultures have curse words and some of those curse words are related to sacred things?
有些人可能并不懂，为什么企鹅不干脆停止摇摆，改成慢慢地走。
Some people might wonder why the birds don't simply stop waddling and walk at a slower pace.
这就不奇怪为什么有些人将对产品的批评转换为对他们选择的批评。
No wonder some people interpret criticisms of a product as a criticism of their choices.
有些网友想知道谁在录视频，并想知道为什么这人没有出面制止此事。
Some wondered who was responsible for taking the video and wondered why that person did not step forward to stop what was happening.
这里有些我为什么要买这个如此昂贵的跑步手表。
Here is a little background on why I splurged and bought such an expensive running tool.
这里有些我为什么要买这个如此昂贵的跑步手表。
Here is a little background on why I splurged and bought such an expensive running tool.
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