BBC纪录片《冰冻星球》世界的尽头第8期:生命之泉

[00:00:07]South of the tree line, the winters are shorter, 林木生长线以南 冬天更短了 [00:07:31]so trees grow faster and taller 因此树木长得更快更高 [00:10:25]and forests begin to appear. 树林已现雏形 [00:14:08]As the warm, humid air from the south 当来自南方的暖湿气流 [00:16:52]meets the cold, arctic air, 遇到北极的冷空气 [00:18:14]the moisture it carries crystallises and snowflakes 前者携带的水分便凝结成冰晶和雪花 [00:21:08]fall from the sky. 从空中徐徐飘落 [00:22:42]Each crystal forms around a particle of dust. 每片雪花都以一粒灰尘为中心 [00:37:39]All have a six-fold symmetry 且具有六边对称性 [00:39:48]but no two have ever been found with exactly the same shape. 但世界上却没有两片完全相同的雪花 [00:51:51]Their variety and complexity is breathtaking. 雪花的多样性和复杂性令人叹为观止 [01:01:12]Each snowflake is water waiting 每片雪花都将在春天融化 [01:03:44]to be released in spring. 化作生命之泉 [01:05:59]For this reason, snow is the lifeblood 因此 雪是这片寂林 [01:08:45]of these silent forests 赖以生存的命脉 [01:10:52]and all that live here depend on it in one way or another. 一切生命都以某种方式依赖着它 [01:21:27]Some, like the great grey owl, 其中 以乌林鸮为例 [01:24:13]appear in spring for the boom times, 它们在春天万物复苏时出现 [01:27:42]then vanish like phantoms. 然后像幽灵一样消失 [01:29:57]Others, like their lemming prey, 另一些 像它们的猎物旅鼠 [01:35:12]are here year-round beneath the snow, 则整年都待在雪下 [01:37:52]insulated from the cold air above. 以抵御外面的严寒

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