The inhabitants must migrate, 居民们只得迁往他处

123. Broad leaves must be shed in winter for their damage by frost.
     由于严寒的原因 阔叶树得在冬天落叶
124. As they disappear,
     树叶消失之后
125. so the land becomes barren with little for animals to eat.
     大地一片荒凉 动物们的食物日益稀少
126. The inhabitants must migrate,
     居民们只得迁往他处
127. hibernate,
     或者冬眠
128. or face months of near starvation.
     或者忍受几个月的饥荒
129. The Amur leopard -
     这是远东豹

来自《行星地球 第一季 第一集 Planet Earth S01E01 从北极到南极》第 126 行