也就是如勒杜所说，“如果把这个系统放进有意识的大脑里，你就会感到恐惧。”

That is, as LeDoux says, "if you put that system into a brain that has consciousness, then you get the feeling of fear."

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但是磁力推进有一些缺陷。

But magnetic propulsion has some drawbacks.

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那么我们该怎样促进有益健康的行为举止呢？

So how then should we promote healthy behavior?

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Today we know, for example, if you can put one certain kind of element in your mouth or eat that, it doesn't necessarily mean you want to put the element next to it and your mouth as well, that might not be safe.

现在我们知道了，比如，即使你能把某一种元素放进嘴里,或者吃下去，这也并不一定意味着,你会把它邻近的元素也吃进嘴里,这可能会有危险，但。

麻省理工公开课 - 化学原理课程节选

Well, suppose we had decimal numbers.

假设我们有10进制数。

麻省理工公开课 - 计算机科学及编程导论课程节选

At one time they burst into his bedroom and he's a little guy.

有一次人们甚至冲进了他的卧室,那时他还很小

耶鲁公开课 - 欧洲文明课程节选