- The only thing that will keep them alive
唯一能让他们活下去的食物 - is buried beneath three feet of snow.
被深埋在一米深的积雪之下 - And that's a problem shared with a surprising neighbour.
他们意想不到的邻居也面临着同样的问题 - The food the fox seeks is also deep beneath the snow.
狐狸在搜寻的食物也被深埋在积雪之下 - The survival of both creatures
这两种生物能否生存下去 - depends on getting through to the ground.
取决于能否挖到地面的食物 - For the bison, it will be a matter of brute strength.
对于美洲野牛来说 用蛮力就可以做到