translation.en: And actually we know that those cells in the body, in the embryo, as they develop can form a different kind of tissue, cartilage, and so we developed a gel that was slightly different in nature and slightly different chemistry, put it in there, and we were able to get 100 percent cartilage instead.
translation.zh: 而且我们也知道体内的这些细胞， 在胚胎时期，当他们生长的时候， 还能形成另一种不同的组织，就是软骨， 所以我们又制造了一种性质和原先不大一样的胶体， 化学效应也稍有不同， 把它们注入， 我们就能得到百分之百的软骨。