It goes - going through this process of amplifying divisions, every division increasing the number of cells by a factor of two and these cells becoming more differentiated around the way.

它经历了一系列扩增性的分裂过程,每次分化,细胞数目都翻一番,而在此过程中细胞分化得更成熟

耶鲁公开课 - 生物医学工程探索课程节选

Can you tell us the process of becoming a professor?

你能告诉我们怎样才能成为一名教授吗？

教授的梦想 - SpeakingMax英语口语达人