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.
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。