translation.en: Now, I was thinking about that and I said, you know, we've got this immune response to this ridiculous molecule that we don't make, and we see it a lot in other animals and stuff.
translation.zh: 正如你所知的， 我们让免疫系统对这个奇怪的分子产生了反应， 而这个分子并不是我们做的，我们能在其他动物和物体上看到这样的物质。