We're looking at the one tailed case.

我们正在研究单尾情况。

And you say, oh, where's that one tail going to be showing up?

你说， 哦，那条尾巴会出现在哪里？

And in this case, we're only going to consider the area in this one tail.

在这种情况下，我们只考虑这条尾巴中的区域。

And instead of thinking about it in terms of a one tail scenario, we're going to think of it in a two tail scenario.

而不是从单尾场景的角度考虑它，我们将在双尾场景中考虑它。

We have these worms that are usually regular worms like with one head and one tail, that's normal, but sometimes they may have two heads or two tails.

这些蠕虫，通常是普通的蠕虫，也就是说有一个头和一个尾，这是常见的，但有时它们可能有两个头或两个尾。

After this still more came, each with one tail more than the other, but they were all turned away, until at last one came who had nine tails, like old Mr Fox.

之后又来了， 一个比一个多尾巴，但他们都被拒之门外， 直到最后来了一个有九条尾巴的人，就像老狐狸先生一样。