地球的力量

Earth has benefited from all of these.
地球拥有一切条件
An environment that remains relatively stable
一个相对稳定的环境
for complex life to survive.But there's a curious twist.
是复杂生命存活的关键 但是还有一个特别的曲折

Too much stability and evolution can get stuck in a bit of a rut.
太多的稳定和进化会造成重蹈覆辙
Every now and then life needs a catastrophe to shake things up.
时不时地生命需要灾难来改变现在
In the jungles of Mexico lies the evidence of one such catastrophe,
在墨西哥的一个丛林里 就有证据证明这样灾难的存在
one that turned out to be very important for us humans.
这次灾难对于人类来说非常重要
You know, everywhere you go around here, you find these holes.
不管你走到哪里都能发现这样的坑
They're called cenotes.
他们被称作沼穴
There's thousands of them and most of them haven't even been explored.
有好几千个 大部分都还没有被探索
But these are the right people to be with because these guys are cave explorers
这些人正是我们需要的 因为他们就是沼穴探索者
and they're going to show me a new world.one beneath our feet.
它们要为我们打开一个新的世界 就在我们脚下
Team leader Bernadette is the first to descend.
小组领队伯纳德特第一个下去
重点讲解

1、benefit
好处；益处；裨益
Each family farms individually and reaps the benefit of its labor.
各家经营各自的农场，收获各自的劳动成果。
I'm a great believer in the benefits of this form of therapy.
我坚信这种治疗形式非常有益。
（对…有）好处，帮助
This could now work to Albania's benefit.
这种情况目前对阿尔巴尼亚有利。
I hope what I have written will be of benefit to someone else who may feel the same way.
我希望我所写的内容能对其他和我有同感的人有所裨益。
获益；对…有益；有利于
Both sides have benefited from the talks.
双方都从谈判中获益。
a variety of government programs benefiting children.
有益于儿童的各种政府项目
2、descend
下来;下降;走下
Things are cooler and more damp as we descend to the cellar.
当我们往下走去地窖时，四周愈见阴冷潮湿。
She descended one flight of stairs.
她走下了一段楼梯。
(情绪、气氛等)降临，笼罩
An uneasy calm descended on the area.
一种令人不安的平静笼罩了该地区。
A reverent hush descended on the multitude.
人群虔敬地噤了声。
（大批人）突然到来，突然造访
3,000 city officials descended on Capitol Hill to lobby for more money.
3,000名市政官员齐聚国会山，为筹集更多的款项进行游说。
Curious tourists and reporters from around the globe are descending upon the peaceful villages.
好奇的游客和记者从世界各地一齐涌向这些平静的村落。