While ice never completely engulfed the planet, 尽管冰雪从未覆盖整个地球

83. and protect the generations that remain.
    继续保护余下的后代
84. All they can do is continue their migration
    它们只能继续迁徙
85. across the cold tundra-steppe.
    穿过这寒冷的冻原
86. While ice never completely engulfed the planet,
    尽管冰雪从未覆盖整个地球
87. its impact was still felt across the globe...
    但它仍对全球产生了影响
88. sometimes in the most unexpected ways.
    有时影响极为出乎意料
89. With most of the world's water locked up as ice,
    世界上大部分水被冰封

来自《我们星球上的生命 第一季 第八集 Life on Our Planet S01E08 冰与火的世纪》第 86 行