Basically what that is is it's an infolding of this respiratory surface where we can have a high surface area.

基本上就是呼吸面的一种内折，样我们可以拥有的表面积。

Now what's interesting about these two is that they are not formed, we don't think, by an infolding of the membrane.

的有趣之处在于，我们认为它们并非通过膜的内折形成。

So you know the golgi apparatus, endoplasmic reticulum, lysosomes, vesicles, all these things are made, we think, from the in folding of this what's called the endomembrane system or membrane on the inside.

所以，你知道高尔基体、内质网、溶酶体、囊泡，所有些结构，我们认为，都是由个所谓的内膜系统或内部膜的内折形成的。