s very important but it's also pretty nearly impossible because the difficulty of the terrain, the people who are divided by this border do not recognize the border and the Afghanastan has never recognized it as an international border.

但其实也是几乎不可能的，It’,因为那里的地形很复杂，被这个边境线所分开的人们并不认可这个边境线,阿富汗人不认可这个边境线。

普林斯顿公开课 - 国际座谈会课程节选