The problem is, what used to be out in the middle of nowhere is now ringed by the city, and these old cemeteries have no space to grow, which brings us back to the vertical solution.

问题是，以前荒无人烟的地方现在被城市包围了，这些老墓地没有生长的空间， 这又把我们带回到了垂直的解决方案。