The stem is like the crowded main road.

VOA: special.2009.10.13

That's a lot of what stem cell biology is like - is about.

干细胞生物学的著作有很多

耶鲁公开课 - 生物医学工程探索课程节选

is that the, like the best stem cells come from human embryos.

是因为最好的干细胞来自于人类的胚胎。

干细胞和伦理 - SpeakingMax英语口语达人

Potential refers to what it sounds like, 'what potential does this committed progenitor cell have?' 'What potential does this stem cell have?' Well, one way to think about is that upon this first division, this asymmetric division, this committed progenitor cell has lost some potential.

这个"潜能"和字面意思相同,定向祖细胞的潜能是什么,干细胞的潜能又是什么,一种看法就是在第一次分化时,即不对称分裂时,定向祖细胞失去了一些潜能

耶鲁公开课 - 生物医学工程探索课程节选