The other is that it's possible to get stem cells from patients, from bone marrow.

另外一个原因就是从病人的骨髓中,取得干细胞是可行的

耶鲁公开课 - 生物医学工程探索课程节选

And, one of the reasons why the role of the dominance of Paris is so great is precisely because of the centralization of the French state.

巴黎能够取得支配地位的一个原因,恰恰就是法国政府的中央集权化

耶鲁公开课 - 1871年后的法国课程节选