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

There's a cluster of cells here, there's a sheet of cells that forms an outer lining, and what is most noticeable is this cavity, this fluid filled cavity which begins to develop.

有一簇细胞,一层细胞构成了外形轮廓,最明显的结构就是这个空腔,这一充满液体的空腔开始发育形成

耶鲁公开课 - 生物医学工程探索课程节选

They start as what are called vesicular lesions, or like blisters, where they're filled with a fluid.

这往往以出水痘开始,或者起水疱,里面充满液体

耶鲁公开课 - 生物医学工程探索课程节选

It's called the synaptic cleft and it's filled with extracellular fluid.

这一空间叫做突触间隙,中间充满了细胞外液

耶鲁公开课 - 生物医学工程探索课程节选