如果我们知道赚钱不易，就不会乱花钱。
We will be more careful with money if we know how hard it is to earn money.
如果我们知道盆地的年龄，我不确定这是否足以成为再次登月的理由。
If we know around how old the Basin is, I'm not sure that's reason enough to go to the Moon again.
如果我们知道一个老顾客会给不少小费，那么我们就要确保他得到良好的服务。
If we know a regular customer is a good tipper, then we make sure he gets good service.
如果我们知道所有的事实，我想我们会发现他一直在为玛莎的一些项目做掩护。
If we knew all the facts, I think we'd find that he's been covering for Marsha on quite a few projects.
如果我们知道女性面试官更有可能拒绝有魅力的女性应聘者，我们就可以帮助面试官认识到他们的偏见，亦或是雇佣外部面试官。
If we know female job screeners are more likely to reject attractive female applicants, we can help screeners understand their biases—or hire outside screeners.
势能减小的方向，如果我们知道这个力。
如果我们知道这些能量，我们就可以做了。
如果我们知道这些代表的是什么，它就更容易理解了。
It's even easier to follow if we know what all of those stand for.
如果我们知道要如何应对，我们将立即行动。
如果我们知道未来将和现在一样的话，那么这个方法不错。
If we knew the future would be exactly the same as the past, that approach would be fine.
如果我们知道，车子的每一个阶段，这就是其中一个可能性。
If we knew what it took to have the various stages of a car add up to the very same car then there will be one possibility.
如果我们知道这个方法，早就采用了。早就采用了。
Had we known about the method, we should have applied it earlier.
如果我们知道状态方程，我们就可以知道所有的物理量。
Again, if we know the equation of state, we know all this stuff.
如果我们知道我们在做什么，那就不能称为研究了，不是吗？
If we knew what we were doing, it would not be called research, would it?
如果我们知道它是一个梯度场，就可以由基本定理，得到上面那些性质。
Well, if we know that it's a gradient field, that we've seen that we get these properties out of the fundamental theorem.
如果我们知道一幢房子何时要坍塌，我们便可以在此之前进行修缮或是离开。
If we know when a building is going to collapse, we can repair it in advance or get out before it falls.
现在我们有一个计算，旋转动能的方法，如果我们知道，怎样计算转动惯量。
So we now have a way of calculating the kinetic energy of rotation provided that we know how to calculate the moment of inertia.
简单来说，如果我们知道变量名，该方法就可以告诉我们正在处理什么类型的变量。
In a nutshell, the method tells us what kind of variable we are dealing with, once we know the name.
如果我们知道，了关于所有参与，反应的化学物质的，我们就能够计算出化学平衡。
And if we know G for all the species G involved in a chemical reaction, we should be able to calculate the chemical equilibrium.
所以如果我们知道晶体中，电子的束缚能，通常这个是很好测的，对于大多数物质，这都是已知的。
So if we know the electronic energy that binds the crystal together, usually something that can be measured easily, so it's known for many materials.
当然，如果我们知道自己和配偶一起生活的时间即将结束时，我们都会做出不寻常的行为。
Of course, we would all act differently if we knew time together with our spouse was running out.
如果我们知道压力和对抗方面的知识，这些知识就能帮助人们改变一些会对血管造成威胁的行为。
If there are things that we know, in terms of stress and antagonism, it may help change people's behavior if they know it's related to vascular risk.
大比例实验花费很多，所以如果我们知道计算机模拟是准确的，那就开启了一道通向全新的研究领域可能性的大门。
Large scale experiments are costly, so if we know that computer simulations are accurate, that opens the door to a whole new range of research possibilities.
如果我们知道Sam为什么有那些举动，那Sam背叛的瞬间或仅仅是他整体上陌生感给观众带来的效果就会大打折扣了。
Those moments of Sam’s betrayal, or just his general strangeness would have definitely lacked impact if we knew exactly why he behaved the way he did.
但是，如果我们知道，物质在固相，液相和气相中所有可能态的能量，统计力学告诉我们，我们可以计算这些相的平衡问题。
But again, if you know all the energies of the possible states, in the solid, in the liquid and the gas, statistical mechanics shows us that we can calculate the equilibrium between those.
例如，如果我们知道某个给定系统上没有需要花费5到10秒进行探测的设备，就可以调节用来进行设备探测所进行的BIOS延时。
For instance, the time that the BIOS delays for device probes could be adjusted, if you know that a given system has no devices that take 5 to 10 seconds for a probe.
比如，如果我们知道团队已经完成了对数据层的测试，但是GUI层难于进行单元测试，那测试人员就应该花费更多努力在这一层的测试上。
For instance if we know that the team has test the Data Layer well, but the GUI layer has been harder to Unit Test then the testers should focus more effort on the GUI layer.
“如果我们知道某人在回避问题，我们不喜欢这样，但是常常我们不会注意它”，诺顿说，你可以给出与问题含糊相关的答案，以便自信地把听众带回到你的主题上。
You can give an answer that is vaguely related to the question but that confidently returns your audience back to your main point.
如果那时我们被发现了，我不知道我们会有什么后果。
If we had been spotted at that point, I don't know what would have happened to us.
如果那时我们被发现了，我不知道我们会有什么后果。
If we had been spotted at that point, I don't know what would have happened to us.
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