Medicine has done a much better job of making us live longer, and the problem is, as we age, our organs tend to fail more, and so currently there are not enough organs to go around.
是医药学的进步 帮助我们越活越长。 问题是，我们越老， 我们的器官越爱失灵。 现今社会， 没有足够的器官来替补。