They wouldn't even have been able to get started without earth science understanding—knowledge about wind, storms, meteorology.
如果没有对地球科学的了解——关于风、风暴、气象学的知识，他们甚至不可能起步。
For no human could exist at this time without Earth, and all of the bounty provided for the sustenance of the life and form by I, Earth Mother.
在此时期，没有地球就没有人类能存在，所有生命与生命形式维生所需的食物都由我地球母亲提供。
We must imagine the early Earth as a mixture of rocky materials, metals, and trapped gases, subject to constant bombardment by smaller planetesimals and without much of an atmosphere.
我们必须想象早期的地球是岩石材料、金属和封闭气的混合物，受到较小的星子的持续轰击，没有多少大气。
It's not known when Mars was found and by whom Mars has been known for a very long time, and one of the planets that can be seen from the Earth without a telescope.
在很长一段时间里，没人知道火星是什么时候被发现的，谁发现的，也不知道有一种行星可以不用望远镜就能从地球上看到。
Without trees, many animals can not live on the earth. It's not easy for man to live on the earth, either.
没有树木，许多动物不能在地球上生活，人类在地球上生活也不容易。
(Applause.) I am pleased that Japan has joined us in this effort, for no two nations on Earth know better what these weapons can do, and together we must seek a future without them.
（掌声）我对日本参与到这一努力中来感到欣慰，因为地球上没有任何国家比这两个国家更懂得这些武器的后果，因此我们必须共同寻求一个无核武的未来。
Yet Jupiter is not without influence upon the earth; and though it is not able to draw it out of its course round the sun, yet it attracts the earth to some extent.
不过，木星也并非对地球没有影响。虽然它不能够把地球从围绕太阳旋转的轨道上拉出来，但是它对地球的引力也产生了相当大的作用。
It was a giant leap suddenly to argue that the Earth orbits the sun, rather than the other way around, particularly without telescopes.
要知道当时尤其是在没有望远镜的情况下，突然声称地球围绕太阳运动而非相反是多么巨大的飞跃。
Critics of the Flat Earth Society say that its members simply deny any evidence that conflicts with their world view without offering real alternative hypotheses.
地平协会的批评家说，该协会的成员只是简单地否认任何与其世界观相悖的证据，却不提供任何其他假说来解释这些证据。
They are telling earth humans for thousands of years how to live in harmony with the existence, without causing disasters.
他们数千年来一直在告诉地球人如何与存在和谐相处，而不制造灾难。
He called the scientific evidence for a globe-shaped Earth "dogmatic," meaning scientists were making this claim without adequate evidence.
他将“地圆说”的科学依据称之为“武断的”，即，科学家们在没有充分的证据下作出了这个论断。
But without a large prominence eruption, we will not have a magnetic storm here at Earth that drives the brilliant aurora.
但是，如果不发生大喷发，地球将不会受磁暴影响，也就不会产生明亮的极光。
Without a care the clouds hungin front of him, casting shadows on the earth.
它们漫不经心地挂在面前，在大地上投射出阴影。
Dr. TURNER: So in fact if you ask how big or how small could it be without changing life on Earth, I think it can't have been different than one over 137 by more than about 10 or 20 percent.
特纳博士：嗯，事实上，如果你问阿尔法常数发生多大或者多小的变化，不会改变地球上的生命，我认为它不能比1/137超出百分之10或20的变化。
Man On Earth, a Channel Four documentary starting today claims that without the last great global warming 120, 000 years ago our ancesters would have died out.
四频道今天开播的《地球上的人类》声称，没有12万年前大规模的全球变暖，我们的祖先已经灭绝了。
Of course, without some greenhouse warming, the earth would be a cold, dead place, but too much CO2 accelerates the effect and could make the earth too hot to be habitable.
当然，没有一定的升温过程，地球就会变成死寒之地，但是过多的二氧化碳加快了升温的步伐，从而导致地球过热而不适合生命居住。
In Nochchimoddai nearby, some of the new dwellings are simply a tin room on four sticks without any covering for the earth.
在Nochchimoddai附近，有一些新的居所，就只是用四根柱子上，旁边用锡板围起来的房子，地面没有任何覆盖物。
According to the myth, the sailors believed after sailing for weeks without spotting land, they would fall off the face of the Earth.
根据传说，船员们认为如果一直航行数周而见不到陆地，他们将会从地球表面坠落。
I exercised, and read novels, and came to appreciate how the earth rotated around the sun and the seasons came and went without any particular exertions on my part.
我锻炼身体，阅读小说，学会去领悟不管自己怎样努力，也不会改变地球绕着太阳转，四季更替这些自然现象。
And dark matter doesn't often interact with most other matter, scientists theorize. One idea is that it flies right through the Earth, your house, and your body without bouncing off atoms.
科学家们推理说，暗物质一般不与大多数其他物质作用，他们认为暗物质会直接穿过地球、房屋甚至是人的身体，并不会被原子所弹开。
So then, it appears that all life on Earth owes formaldehyde a debt of gratitude, as without this now incredibly deadly poison we probably wouldn't be around today.
这样来看的话，地球上的所有生命都欠甲醛一个大大的人情啊，如果没有这个现在看来及其致命的有毒物质，也许地球上就不会有我们存在了。
Without this so-called "greenhouse effect," Earth would probably be too cold for life to exist, although a runaway greenhouse effect led to the hellish conditions now seen on Venus.
如果没有这种“温室效应”，地球将变得非常寒冷，而不适于生命的存在。但过度的温室效应导致了现在金星上所见的地狱般的景象。
Without this so-called " greenhouse effect, " Earth would probably be too cold for life to exist, although a runaway greenhouse effect led to the hellish conditions now seen on Venus.
如果没有这种“温室效应”，地球将变得非常寒冷，而不适于生命的存在。但过度的温室效应导致了现在金星上所见的地狱般的景象。
Without the greenhouse gases carbon dioxide and water vapor to trap heat, for example, Earth would be frozen solid.
如果没有温室效应释放二氧化碳和水蒸气以起到保温作用，地球就会凝结成固体。
Viewed from Earth, NGC 6744 is about two-thirds the size of a full moon, but it's so faint you can't see it without a backyard telescope.
从地球上看，NGC 6744的大小差不多等于三分之二个满月。可惜的是，由于太过昏暗，我们惟有通过后院式望远镜才能观测到它。
Viewed from Earth, NGC 6744 is about two-thirds the size of a full moon, but it's so faint you can't see it without a backyard telescope.
从地球上看，NGC 6744的大小差不多等于三分之二个满月。可惜的是，由于太过昏暗，我们惟有通过后院式望远镜才能观测到它。
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