When I got to this result, I pointed out that therefore, you can use the lever rule.

当我得到这个结果时，我指出，因此，你可以使用杠杆法则。

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The lever gets them out of the box, but after more and more trials, they stopped scratching at the bars and pushing at the ceiling.

杠杆让它们出了盒子，但在越来越多的尝试之后，它们不再抓栏杆和推天花板。

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Mice were trained to push levers to get either of two rewards. Press one lever, out comes a drop of sugar water.

研究人员训练老鼠去推动控制杆，推动之后能得到两种报酬中的一种——推动第一个控制杆，就会渗出一滴糖水；

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The lever gets them out of the box, but after more and more trials they stopped scratching at the bars, pushing at the ceiling and so on.

杠杆让它们逃出迷笼，但在经历多次尝试之后,它们不再抓栏杆，不再推顶棚。

耶鲁公开课 - 心理学导论课程节选

And the trick to a puzzle box is there's a simple way to get out but you have to kind of pull on something, some special lever, to make it pop open.

这个谜笼的设计是这样的,只要小猫拉动一个东西,它就能够逃出去，拉动一个特殊的杠杆，迷笼就会打开。

耶鲁公开课 - 心理学导论课程节选

But many Israelis say that quitting Gaza is the thin end of a wedge that will eventually lever Israel out of much or all of the West Bank as well.

ECONOMIST: Israel and the Palestinians

The settler movement as a whole sees disengagement as the thin edge of a wedge that will eventually lever Israel out of the West Bank and parts of Jerusalem as well.

ECONOMIST: Israel's settlers

The six-party talks have got further than previous efforts to lever North Korea out of the bomb-making business.

ECONOMIST: Time for North Korea to come clean about its nuclear past