This transcontinental convoy dealt with all the poor driving conditions of the time.... incomplete or non-existent roads of dirt or sand, unsturdy bridges, and treacherous conditions from bad weather.

• 这场横穿整个城市的护航和当时贫乏的交通环境是分不开的......残缺不全或者根本没有的沙土路，摇摇欲坠的桥梁，还有变幻莫测的恶劣天气。