" Wheels on the bus" ? " Itsy bitsy spider" ? Something?

公车的轮子 可爱的小蜘蛛 或者其他什么都行？

I mean, the nation has to relive every detail like the little tiny, teeny itsy bitsy, really small.

我的意思是， 整个国家都要重温每一个细节， 就像小小的，微不足道的， 真的非常小的东西。

Now this is not that big of a deal in a big eye like yours, but in an itsy bitsy spider eye it means different colors of light are coming into focus at totally different distances from the lens.

这对你这样的大眼睛来说没什么大不了的，但是对一个小小的蜘蛛眼睛来说，这意味着不同颜色的光在离晶状体完全不同的距离处聚焦。