You just grow up cells until you've got a lot of cells.

你只要培养细胞直到得到大量细胞

耶鲁公开课 - 生物医学工程探索课程节选

Well, if you knew a cell that could serve as a host for a virus, you could use this process of cell culture to make large quantities of virus,right?

如果你知道细胞可以变成病毒的宿主,可以用培养细胞的过程,制造大量病毒,对吧

耶鲁公开课 - 生物医学工程探索课程节选