但是随着宇宙不断膨胀冷却，从无序变得有序，一个小小的波动就足以造成巨大的变化。
However, as the universe expanded, cooled, and went from a disorderly state to an orderly one, it reached a point where very small fluctuations created very large changes.
我们知道，当今宇宙在膨胀和冷却，所以早期的时候，它是微小和高温的。
We know that the universe is expanding and cooling, so earlier on it was smaller and hotter.
随着宇宙的膨胀，辐射逐渐冷却，残余下来的就是我们今日所见的情况。
As the universe expanded, the radiation would have cooled until it is just the remnant we see today.
应用推荐