The supply-route troubles are yet another sign of the precarious relationships that the United States and its allies must maintain to continue the fight in Afghanistan.
供给线路的麻烦也是危险关系的另一种信号，但美国及其盟友必须保持在阿富汗的持续战斗。
2
The bad news was that this supplyroute is also fraught with pitfalls, from arduous delays to bribes and extortion.
坏消息是这条补给线路同样充满了陷阱，包括艰难运输造成的延误以及贿赂、勒索等。
3
It is an important part of a northern supplyroute developed because of the vulnerability of convoys coming through the Khyber Pass from Pakistan.