The political pendulum has swung in favour of the liberals.

政治的钟摆已经摆向了自由派。

The pendulum seems to be swinging the other way.

钟摆似乎摆到另一方向去了。

I mentioned three reason why we want to shift this pendulum.

我提过三个原因，关于为什么我们想要改变这个摇摆不定的事态。

By the 16th century, a pendulum clock had been devised, but the pendulum swung in a large arc and thus was not very efficient.

到了16世纪，人们发明了摆钟，但钟摆摆动的幅度很大，因此效率不高。

That's how the clock runs, by the pendulum moving from one extreme to the other.

时钟的工作就是依靠钟摆从一个极端摆向另一个极端。

If the pendulum stops in the middle, it will be the coolness of love; and if the pendulum stops in the middle, the clock will also stop.

如果钟摆停在中间，那就是爱的清凉；如果钟摆停在中间，时钟也停下不走了。