对于我们这些地球上的普通人,去太空旅行的梦想会成真。
For us common people on the earth, the dream of travelling around space will come true.
当氦衰变成为氦-3相对于我们在太阳里看到的那它就可用了,因为地球上多数的氦-4是通过元素铀和钍自然放射性衰变而造成的。
What helium is available is depleted in helium-3 relative to what we see in the sun, because most of Earth's helium-4 is freshly made via natural radioactive decay of the elements uranium and thorium.
几十年来,危言环境保护主义者一直警告说人类的厄运迫在眉睫,主要由于我们对于地球上自然环境系统的利用不可持续,且对其造成严重影响。
For decades, apocalyptic environmentalists (and others) have warned of humanity's imminent doom, largely as a result of our unsustainable use of and impact upon the natural systems of the planet.
对于我来说,我相信U FO的存在,我们生活在地球,这只是宇宙中很小的一部分,我们怎么能说在其他地方就没有其他生物呢。
As for me, I do believe in UFO, we live in the earth which is only a small part of the universe, how can we say there is no other living creatures in the other places.
今天,对于我们的地球和我们本身来说,污染已经变成了一个严重问题。
Today, pollution has become a serious problem to our earth and us.
地球处于来自超大质量黑洞产生发射物的“枪口”方向,但是这些被叫做耀变体的天体处于一个对于我们来说非常安全的距离位置上,成万上亿光年。
From the Earth we look down the barrel of jets from supermassive black holes, however these so-called "blazars" are at much safer distances of millions or billions of light years.
也许对于我们来说,水、电、食物这些资源是取之不尽的,但是,你可否想过:在地球的另一方,有人因缺水而死亡,因饥饿而失去生命。
Perhaps for us, water, electricity, food, these resources are inexhaustible, but, you may want to: on the other side of the earth, people died for lack of water, lost their lives because of hunger.
你将在此时给出一个阐述,关于我们所知的太阳黑子,解释这些现象的原因和它们对于地球和它的居住者的影响。
You will give at this time a discourse on what are known as Sun Spots, explaining the cause of these phenomena and their effect on the earth and its inhabitants.
正像树木对于鸟儿来说是。必不可少的一样,地球对于我们人类也是很重要的。
As woods are indispensable to birds, the earth is just similarly important to us human beings.
地球是我们唯一居住的地方,所以可想而知环境对于我们的重要性。
The earth is the only one place we live in. So you know how important the environment is.
对于我们生活和工作的社区以及整个地球 村,我们同样负有责任。
We are responsible to the communities in which we live and work and to the world community as well.
对于我们生活和工作的社区以及整个地球 村,我们同样负有责任。
We are responsible to the communities in which we live and work and to the world community as well.
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