Sent_en: 2zh Roads in Afghanistan are often difficult to traverse, so militaries often contract aircraft, especially from Russia, to transport troops and cargo between bases.
Sent_yy: 阿富汗的公路通常很难穿越，所以军队经常订约飞机，特别是从俄罗斯，以便在各基地之间运送军队和货物。