translation.en: And then there's everybody else: the children who don't benefit from a stable marriage, who don't have as much invested in them, who don't grow up in a stable environment, and who go on to become the bottom three lines in that graph.
translation.zh: 然后呢？ 这些就是剩下的阶级： 这些孩子没有得到稳定婚姻所带来的好处， 也没有受到很好的教育投资， 也没有稳定的成长环境， 因此他们就成为了底下三条线里的阶层。