The cons hurry for cover and watch the bars pull free from the window – the weight of the elevator blows them off easily.

团伙们匆忙地找东西垫在地上，他们看着栅栏被从窗户上拉下来-电梯的重量轻松地就将它们扯动了。

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Pull down the left and the middle lever and then push the button to get an elevator.

拉下左边和中间的杠杆，然后按下按钮，得到一个电梯。

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We all know that in a falling elevator, you definitely do not escape the pull of gravity.

我们都知道在一个下坠的电梯里,你当然还是会受到重力的

耶鲁公开课 - 基础物理课程节选