As the world further north dried out, 随着世界北部进一步干旱

88. As Antarctica became colder and more isolated,
    随着南极变得更加寒冷与孤立
89. the huge continent froze,
    整个南极大♥陆♥冻住了
90. locking up much of the planet's fresh water.
    将地球上的大量淡水锁住
91. As the world further north dried out,
    随着世界北部进一步干旱
92. it became a harsher, more difficult place to live.
    它成为了 一个更恶劣、更难以生存的地方
93. Food became more spread out,
    食物变得更分散
94. harder to find.
    更难以寻找

来自《我们星球上的生命 第一季 第七集 Life on Our Planet S01E07 地球继承者》第 91 行