Here's a way that you can do it in a test tube without using any cells by this process called Polymerase Chain Reaction.

但有一个方法可以让你在试管中完成,不用细胞,这个方法叫聚合酶链式反应

耶鲁公开课 - 生物医学工程探索课程节选

and democratic country. And then in the sense it's hard to imagine that there will not be a reaction to the inequitable growth process.

不管这个国家是否是民主制,如果放任不平等性经济增长,后果将难以想像。

普林斯顿公开课 - 国际座谈会课程节选