The persistent question of "Why do I need that?"—or, perhaps more tellingly, "Why do you need to know that?"—dogs the steps of many new ventures.
一个挥之不去的问题阻碍了许多新企业的脚步，即“我为什么需要它？”或者，也许更能说明问题的是，“为什么你需要知道这个？”
The persistent question of "Why do I need that?"—or, perhaps more tellingly, "Why do you need to know that?" —dogs the steps of many new ventures.
一个挥之不去的问题是“我为什么需要它？”——或者，也许更能说明问题的是，“为什么你需要知道这个？”——-阻碍了许多踏入新的冒险的脚步。
Do you remember all years when scientists argued that smoking would kill us but the doubters insisted that we didn't know for sure?
还记得那些年吗？当初，科学家提出吸烟会导致死亡，而怀疑者们却坚持认为我们还不能确认这一点。
If you're self-aware, you may know that you love playing an instrument because you do well in it, and music makes you happy, or that you prefer watching TV on your own because it helps you relax.
如果你有自我意识，你可能知道你喜欢演奏哪一种乐器，因为你擅长它，并且音乐使你快乐，或者你喜欢独自看电视，因为它有助于你放松。
Had I filled myself with all that you know what room should I have for all that you do not know?
我若把你所知道的一切来装满自己，那么还有什么空间来装你所不知道的一切呢？
Now that you know how to do simple operations with global variables, this section provides some interesting scenarios that show you how you can use them.
现在您已经了解了如何使用全局变量执行简单的操作，本节将提供一些有趣的场景以展示如何使用它们。
You don't have time in your life to do that, or you may not know how to do it, so we're going to do that for you.
在你的生活中，你没有时间干这些，或者你也许并不知道该怎么做，所以我们就来为你做这些事情。
My pleasure, I don't know the details but I do know that its people like you and your wife that put your life on the line every day that make the world a better place.
不客气,我不了解详细情况,但是有一点我是知道的，是像你和你的妻子这样的人,你们每一天都在冒极大的风险，命悬一线，才使这个世界变成更美好的地方。
How do you ensure not only that you know the best practice approach but that the rest of the team does, as well?
您如何确保不仅您了解最佳实践的方法，而且团队的其余人员也了解呢？
And when you get that sensation, you really want to hitch to that train, because you know someone might do something very personal to them.
而一旦你有了这样的感触，你就会非常想加入其中，因为你知道有人会做一些非常独特的事情。
Now that you know that the first component has to be the root component, how do you ensure that the right component is the first?
既然您知道了第一个组件必须是根组件，那么如何确保正确的组件是第一个组件呢？
Most of you know what happens next: you do the one thing that guarantees that the data stays lost.
多数人都知道下面将要发生的是：您做了一件使数据完全丢失的事。
Thing I've got a little procedure that could do that, but you know the simplest thing I could do is to say well, gee, wait a minute, why don't I just check to see if these are the same thing?
这两个点是同一个点么？,我已经写了一小块代码，可以提供这个功能,但是你知道的我可以做的，最简单的事情就是说好，嗯？,等等，我为什么不直接去看看,这两个东西相等不相等呢？
The short answer is that you do know what you're testing, you just don't know you know because you're not used to thinking that way.
答案很简单，您的确知道您在测试什么，只是不知道您所了解的内容，因为您不习惯按这样的方式进行思考。
Let him, know that there is nothing that he can do that will make you hate him, if he tells you about it honestly.
你要让他知道如果他能对你诚实的讲出实情，他所做的一切都不会让你对他心生厌恶。
Do you know anyone that acts like the people in the advertisements that we are constantly bombarded by daily in all forms of media?
你认识任何人行为举止像每天透过各种媒体向我们疲劳轰炸的广告里面的人吗？
But if you thought that SEO can't really work on a big site, now you know that it can — and just how to do it.
但是，如果您以前认为SEO在大型站点上是不可行的，现在应该知道，这是可行的，也应该知道该怎么去做了。
But what do you do when your spouse hurts you so deeply that you find a bitter root developing within, despite your every effort, and the fact that you know it can hurt more than it can help?
但是当伴侣将你伤害的很深，并且你找到了痛苦的内在根源，发现即使你再努力，事实却仍旧是带来的伤害多于帮助时你将怎么做？
It is troublesome to try to enter Strings that you do not know offhand, or that would be difficult to type, like long alphanumeric Strings.
对于输入不知道的字符，或是难于输入的字符(例如长的包括字母和数字的字符)是比较棘手的。
But Dad, do you know that there is actually a generation gap between us? Increasingly, I feel that you do not understand me and the way that you love me is not the way that I really want.
我知道你做什么都是为我好，不过爸爸，你知道吗，你是否有察觉我们之间有代沟，你越来越不了解我，你爱我的方式也不是我所需要的。
You'll get more time for yourself, your work and things that are most important to you. I know I do and I'm happy I started doing that.
你会为自己、工作以及对自己重要的事情得到更多的时间，我知道我一定而且很乐意开始那样做。
Encapsulation refers to the concept of making an object a black box, so that when you use that object you do not know its internal workings.
封装指的是使对象成为黑箱的概念，这样当使用对象时就不知道它的内部工作原理。
I've not read The art of The Start (I plan to) but I do know that once you take that very first step forward things become much easier.
我没有读过开始的艺术(我计划阅读)，但我知道，一旦你走出第一步，事情就变得容易多了。
If you fail this test then you know for sure that you are not gradient field so you might as well do that.
如果通不过检验，那么可以肯定，它不是梯度场，你可能也会那样做。
It was how he looked at things you showed him, or what he said or didn't say in a few words, that made you know you could do better, that you had to do better.
当你把东西拿给他看的时候，他说出来的几个字，或者根本不用说，就让你知道自己还能做得更好，也必须做得更好。
That sounds an awful thing to say but do you want anyone to know that you can get into very high-encrypted stuff?
这可能听起来有点让人不爽，但你希望别人知道你能获取非常加密的东西吗？
You are my secretary and you are not supposed to talk to me in that tone of voice. Do you know that?
你是我的秘书，你不该用这样的语调跟我说话，你不知道吗？
You are my secretary and you are not supposed to talk to me in that tone of voice. Do you know that?
你是我的秘书，你不该用这样的语调跟我说话，你不知道吗？
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