Not only is their prey seasonal, it's also hard to find. 不仅它们的猎物是季节性的,而且很难找到

96. Further south, other bigger predators prowl the tundra.
    在北极苔原更远的南边有更大的掠食动物出没
97. Wolves.
    狼
98. For them, finding food on the plains is an even greater challenge.
    对于狼来说 在茫茫大草原上寻食甚至更为艰辛
99. Not only is their prey seasonal, it's also hard to find.
    不仅它们的猎物是季节性的,而且很难找到
100. They've been searching for days without a sign.
     这些狼虽觅食多日 但一无所获
101. Somewhere in this immense landscape there is food for them.
     在这无边无际的大地上的某处 有它们所需要的食物
102. This is it.
     这就是了

来自《行星地球 第一季 第七集 Planet Earth S01E07 伟大草原》第 99 行