The red blood cells that carry oxygen only live within your circulation for about a month and so you have to continually be replacing cells that are dying and so there are cells that are proliferating.

携带氧的红细胞,在你的循环系统中的寿命只有一个月,因此你必须持续不断地更新衰老的细胞,所以就有在增殖的细胞

耶鲁公开课 - 生物医学工程探索课程节选

Right, because then everyone knows that there's going to be a death, whereas the cabin boy didn't know that this discussion was even happening, there was no forewarning for him to know that "Hey, I may be the one that's dying."

对，因为这样所有人都知道会有人死，而不是像之前派克被完全蒙在鼓里，根本没有人预先警告他,可能抽到是我死“

耶鲁公开课 - 公正课程节选