On its own, a snowflake is a fragile, frozen wonder. 雪花本身就是一个脆弱的冰冻奇迹

39. led to an abrupt cooling of the planet.
    导致地球温度骤降
40. The great Ice Age had begun...
    冰河时期开始
41. ...and it started with the tiniest of things.
    从最细微之处开始变化
42. On its own, a snowflake is a fragile, frozen wonder.
    雪花本身就是一个脆弱的冰冻奇迹
43. No two the same.
    没有两片雪花完全相同
44. But together, snowflakes changed the world.
    但是雪花聚在一起 改变了世界
45. Without warm summers to melt them,
    没有了温暖的夏季将其融化

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 42 行