Their hands, stretched out the bus's window, were clasped tight by their Mongolian friends. Then the moment came when they could do nothing but let go, everyone pledging in their hearts to meet together again.
伸出車窗外的手，都被蒙古朋友緊握，不得不放開的那一剎那，大家都在心裡許下了再次相見的諾言。