来自《耶鲁大学开放课程：金融市场 第2集 第2集》

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  Well, nothing in terms of the math.
  当然 那是从数学角度来说的
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  The probability theory is new.
  但概率论是个新知识
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  Others though, I want to tell you that it doesn't--
  其他的 我想告诉你们不必...
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  if you're shopping--
  如果你还在挑选课程...
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  I had a student come by yesterday and ask
  昨天有个学生来问我
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  he's a little rusty in his math skills
  他的数学有点荒废了
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  if he should take this course.
  他该不该选这门课
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  I said, "Well if you can understand tomorrow's lecture
  我说 如果你能听懂明天的课
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  that's today's lecture--
  也就是今天这课
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  then you should have no problem."
  那你不会有问题的
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  I want to start with the concept of probability.
  我想从概率的概念开始讲起
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  Do you know what a probability is?
  你们知道什么是概率吗