In fact, they're no longer capable of reproducing; all they can do is exist as red blood cells and then die.

事实上,红细胞已经不能再增殖了,它们所能做的只是,作为红细胞过完一生然后死去

耶鲁公开课 - 生物医学工程探索课程节选

And then perhaps the right thing to say is the person no longer exists, so they no longer exist as a person, even if the body is still alive.

也许正确的说法应该是,这个人已经不存在了，他们作为人的身份已经消失，即便肉体还是活着的。

耶鲁公开课 - 死亡课程节选