These are cells that I that were obtained either from a more developed embryo, past the blastocyst stage.

这些细胞是我从,发育的更成熟的一些胚胎中提取的,这些胚胎已经过了囊胚期了

耶鲁公开课 - 生物医学工程探索课程节选

The cells of this cluster inside next to the fluid filled cavity is a region of the blastocyst called the inner cell mass.

而这簇细胞的内侧,毗邻于充满液体的空腔的一侧,这些细胞在囊胚中称为内群细胞

耶鲁公开课 - 生物医学工程探索课程节选

Further down the line, for example, in the blastocyst I talked about before, we could obtain cells from this inner cell mass or this cluster of cells that becomes the embryo.

沿着这条线看,举个例子,就是我之前提到过的囊胚,我们可以取一些内细胞群的细胞,这种能成为胚胎的细胞群

耶鲁公开课 - 生物医学工程探索课程节选