地球的力量

Jerry's target on the Moon is a panel made up of individual reflectors
杰瑞在月球上的目标是一个这样的角形反射器
that were left by astronauts from the first Moon walk and later Apollo missions.
是由第一个在月球行走的宇航员 以及后来的阿波罗计划安置的

It takes just 2.5 seconds for the light to return to Earth.
激光只需2.5秒就返回地球
Jerry has measured this figure every day for decades.
杰瑞已经测量了数十年时间
And his results reveal something remarkable.
而他的数据清楚的显示
The Moon is receding 3.8 centimetres per year,
月球每年远离地球3.8厘米
which kind of surprised me, I didn't really give it a thought
真的很奇怪我从没想过会这样
whether it was standing still or moving, but it is, it's moving away.
它并不是静止或者移动它正在远离
And eventually, we'll lose it.So the Moon will not be with us forever.
总有一天，我们会失去月球 所以月球不会永远和我们在一起
Eventually, it will drift away into space and Earth will lose its climatic stability.
最后，它会漂流到太空里 地球会失去它的稳定气候
But there's no need to panic.It'll take billions of years.
但是没有必要恐慌 这个过程将花费数亿年
Earth's chance collision with its twin was perhaps the critical moment in its history.
地球和它的孪生星球撞击 也许是地球历史上最关键的时刻
By this theory, it ensured that the planet held on to its protective atmosphere.
它使得地球可以留住保护自己的大气层 它使得地球可以留住保护自己的大气层

重点讲解

1、individual
个别的;单独的
They wait for the group to decide rather than making individual decisions.
他们等待团体作决定而不是各自作出决定。
Aid to individual countries would be linked to progress towards democracy.
对个别国家的援助会与其民主进程相挂钩。
个体;个人
anonymous individuals who are doing good things within our community.
一些在我们社区内做好事却不留名的个人
the rights and responsibilities of the individual.
个人的权利和责任
独特的;有个性的
It was really all part of her very individual personality.
那其实都是她独特个性的表现。
The language is highly individual.
语言非常独特。
2、critical
极重要的;关键的
The incident happened at a critical point in the campaign.
该事件发生在竞选活动的关键时期。
Environmentalists say a critical factor in the city's pollution is its population.
环境保护主义者说造成该城市污染问题的一个关键因素是其人口数量。
(局势)严重的，有危险的
The German authorities are considering an airlift if the situation becomes critical.
如果局势变得危急，德国当局将考虑实施空运。
Its day-to-day finances are in a critical state.
其日常财务状况十分糟糕。
批评的;挑剔的
His report is highly critical of the trial judge...
他在报告中对主审法官有颇多批评。
a few dozen intellectuals who've been critical of the regime.
几十名一直批判该政权的知识分子