雪橇竞赛犬的驾驶者一直以来遵循一项基本的长途赛准则:跑六个小时,休息六个小时。然而最近,重大赛事如艾迪塔罗德狗拉雪橇赛的赢家,可以一口气跑上14个小时,大大超出人们认为的极限。雪橇犬变得更加强壮,也跑的更 The sled dog driver has followed a basic long-distance race rule: six hours of rest and six hours of rest. Recently, however, winners of major events such as the Iditarod bulldog race have been able to run for 14 hours at a stretch, far beyond what people think of the limits. The sled dogs become stronger and run more