但当我们用化学方法分析这些细胞时，我们发现了一些非常有趣的东西，其中有一种化学物质，是一种叫做端粒酶的酶。

But when we analyze these cells chemically, we find something very interesting, a chemical in them, an enzyme called telomerase.

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虽然我们不能阻止地震的发生，但我们可以用一些方法来减少伤害。

Although we can't prevent an earthquake from happening, we can use some methods to reduce harm.

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但是为了保证违约评级不至于引起混乱，只得开始用些“变通”的方法了。

But the contortions have begun to make sure that a default rating would not cause chaos.

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and then finally you get him to also open up the refrigerator and get the beer, open the door, and in that way you can train creatures to do complicated things.

最终你还是让他打开了冰箱,取出了啤酒，打开冰箱门，用这种方法,你可以训练各种生物去做些复杂的事情。

耶鲁公开课 - 心理学导论课程节选