translation.en: He gave them "Wool 2," which was a little bit longer than the first one, "Wool 3," which was even longer, culminating in "Wool 5," which was a 60,000-word novel.
translation.zh: 他又写了“羊毛2”，比“羊毛1”篇幅长一些， "羊毛 3"更长一些， 最终在"羊毛 5 ”达到顶峰 一个 6万字的小说。