earth's surface

基本解释

Antarctica is a very large area of the earth's surface, but— until recent years— was the least studied.
南极洲是地球表面上一块巨大的土地，但是，直到近年，人类的研究都很少涉及于此。
It's part of the East African Rift Valley, a massive tear in the earth's surface, thousands of miles long.
它属于东非大裂谷的一部分；大裂谷在地球表面一道巨大的深裂地形，绵延数千英里之长。
Rainforests are being cut and burned from Brazil to Indonesia at such a rate that they could well disappear from the earth's surface before the year 2050.
从巴西到印度尼西亚，雨林正在以极快的速度被砍伐和烧掉，到2050年它们将很可能从地球表面消失。

The atmosphere is about twenty-percent oxygen and eighty percent nitrogen from Earth's surface to where space begins at one-hundred-twenty kilometers up.
That is the lowest point on the earth's land surface so this dramatic drop in just a very short geographical area.
这是地球陆地表面的最低点,这急剧下降是在很短的地理范围内。
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Right. The most famous example is that when things fall near the surface of the Earth, they all have the same acceleration, and the acceleration that's common is called g, and that's 9.8 m/s^.
最有名的例子就是,当物体地球表面附近下落时,它们都拥有相同的加速度,这个普遍的加速度叫做g,大小为9.8m/s^
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The areas are sparsely populated, and the earthquake was 62 miles beneath the Earth's surface.
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