PROFESSOR: All right. Good. So we can fully believe what our calculations were now, which is a nice thing to do.
教授：好了，我们现在可以，完全相信我们的计算结果了，多么美妙的一件事。
And so all we have to do now is to calculate the moment of inertia of the system, and then we can predict what the period — of this pendulum is going to be — which is not my goal.
所以我们现在要做的，是算出这个系统里的转动惯量，然后就可以预测出，这个摆的周期是多少-，这并不是我的目的。
I have here that same ladder, and now what I will do is I will set the angle alpha not exactly at the critical point but a little lower, so that when I let it go, we'll all see that it will slide.
这是一个梯子，现在我要,使得角度α,不是恰等于临界点,而是略小一些，所以当我放手，我们会看到它下滑。
Now, what I do in life now long Autumn own youth! After the fall, I know football. So, I then change all.
现在，我是否该做些什么，在生命长河中刻下自己的秋色青春！之后的那个秋天，我认识了足球。于是，我的一切从此改变。
Now I am leaving with nothing to fear, so I must tell you the truth: I do not like salty coffee at all, what a bad taste... But I have been drinking it all my life!
现在我就要走了，什么也不怕了，我必须告诉你真相：其实我一点也不喜欢加盐的咖啡，那太难喝了……但是我喝了一辈子。
I realize that what I need to do now is to study well, so that I can make all my dreams come true.
我知道我现在需要做的是好好学习，这样我就可以实现我所有的梦想了。
I was remiss, so distracted by my duties, now I'm all alone, I just don't know what to do!
是我的疏忽，太忙于工作而分心，现在我孤单一人，不知如何是好。
Sam: Oh, well, it's OK now. It's all right. So what should we do? Your mother used to sing to you when you had bad dreams.
山姆：噢，现在没事了。好了。我们该做什么呢？你做噩梦时你妈总是唱歌给你听。
Books just record the experience of the people of the past, but do not tell you what you should do now. So why are you unluckily carrying all these books to handle your affairs?
书是用来记录人们过去的经验的，它并没有告诉你现在该怎么办，你为什么偏偏要背着书去做事呢？
Books just record the experience of the people of the past, but do not tell you what you should do now. So why are you unluckily carrying all these books to handle your affairs?
书是用来记录人们过去的经验的，它并没有告诉你现在该怎么办，你为什么偏偏要背着书去做事呢？
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