地心吸力把物体吸向地心。

The lunar gravity is about one-sixth that on earth.

那好比打破杯子却怪罪地心吸力。

That's like blaming gravity for the glass you broke.

地心吸力让我们能在陆地上正常生活。

The gravity enables us to live naturally on land.

自然规律是那么细微地校准，就是说，地心吸力或电磁学中，算是最细小的改变，都会令到宇宙无箘。

Incredibly, the natural laws are so finely calibrated, even the slightest change to, say, gravity or electromagnetism, would render the universe sterile.

假如我们在一个晴朗的早晨醒来，发现地心吸力减少到了一点儿，难道我们还会那么老实地行走在大路上？

If, on waking one fine morning we were to find gravitation reduced to only a fraction of itself, would we still demurely walk along the high road?