A new US study found why a very small proportion of arterial plaques become deadly and lead to heart attack or stroke and why the vast majority others stay benign and apparently do no harm.
美国一项新的研究已发现占小比例的动脉斑块致命并引起心脏病发作或中风的原因，以及大多数其它动脉斑块是良性的、无明显危害的原因。
That made me feel better, so I didn't ask her why the boy in the basement was making noises like a puppy, or why he had no hands or feet.
我感觉好多了，所以没有再问为什么地下室那个男孩会发出小狗一样的叫声，为什么他没有手和脚。
No one can understand why the soil their parents tilled has turned to desert, or why their skills have become useless and their family is left hungry.
没有一个人能够理解为什么他们的父辈辛勤耕耘过的土地变成了荒漠，为什么他们的劳动技能变得毫无用处，为什么他们的家人忍饥挨饿。
You can use these messages to help determine why a custom Ribbon does not appear, or why a Ribbon appears but no controls appear.
您可以使用这些消息来帮助确定为何自定义功能区未出现，或者为何功能区出现但控件未出现。
No one can understand why the soil their parents tilled has turned to desert, or why their skills have become useless and their family is left hungry.
没有人能理解为什么他们的父辈们辛勤耕耘过的土地会变成沙漠，也没有人能理解为什么他们的劳动技能变得一无用处，他们的家人为什么会挨饿。
But he couldn't. He couldn't kill that little boy. No one knows why, or how, but they're saying that when he couldn't kill Harry Potter, Voldemort's power somehow broke - and that's why he's gone.
但是他杀不了那个小男孩，没有人知道其中的原因，但是人们说如果他杀不了哈利·波特，伏地魔的力量就会消失——这也是他离开的原因。
I have no idea why that works... or why it's necessary... but you'll never get it to work any other way. I've tried countless other "correct" methods.
我不知道为什么，…或者为什么有必要…但你永远不会得到任何其他方式工作。我试着无数的“正确”方法。但他们从不工作。
I have no idea why that works... or why it's necessary... but you'll never get it to work any other way. I've tried countless other "correct" methods.
我不知道为什么，…或者为什么有必要…但你永远不会得到任何其他方式工作。我试着无数的“正确”方法。但他们从不工作。
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