It's not as though we think that if you start opening up the body you'd finally find the particular spot.

但不是我们想的那样,只要打开你的身体,就能在其中找到一个特定的位置

耶鲁公开课 - 死亡课程节选

It turns out that one of the places that's been very fruitful to look for proteins that differ between cell populations is on the surface of the cell.

而事实证明,寻找能鉴别细胞种类的,特定蛋白的最佳位置,是在富含蛋白的细胞膜上

耶鲁公开课 - 生物医学工程探索课程节选