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This is our planet, the Earth.
这就是我们的星球，地球
It's an amazing world, full of natural wonders,
这是一个伟大壮丽的世界 充满了大自然的奇迹
but there's far more to Earth than its natural beauty.
但自然美并不是地球最美妙之处
My name is Iain Stewart and I want to show you how our planet works.
我叫伊恩·斯图亚特我要带你们探索我们的星球如何运作
Our planet is unique in the solar system,perhaps even in the universe.
我们的星球在太阳系中是独一无二的 甚至在宇宙中也是这样
And that's no surprise when you consider the outrageous good fortune
毫不惊奇你会考虑我们要有天大的好运
it's taken to create our extraordinary world.
才能仓创造出这个独一无二的世界
What makes the Earth so special is the way that everything seems to come together
地球为何如此特别 好像一切都安排好了一样
to create the perfect conditions for life.
为生命仓创造了完美的生存条件
It's taken four and a half billion years
将地球从光秃秃的岩石变成我们今天熟悉的世界
to turn the Earth from a barren rock into the world we know today.
地球花费了45亿年
It's been an incredible journey of catastrophe and renewal.
那是充满了灾难和重生的不可思议的旅程
But now this rare and remarkable planet
现在这个稀少又壮丽的星球
is facing perhaps its greatest challenge, humankind.
正在面临着巨大的挑战那就是人类
The question is, will it survive?
问题是，它会活下去吗？
