Disaster movies often portray catastrophes that destroy, or at least threaten to destroy earth's entire population.

灾难影片经常刻画那些毁灭，或者至少威胁着要毁掉地上全部人类的大灾难。

That's because the earth's atmosphere shields us from harmful radiation.

这是因为地的大气层保护我们免受辐射伤害。

One degree of latitude on the earth's surface equals almost 70 miles.

地表上的纬度一度相当将近七十英里。

Compared to earth's mass, Jupiter is thought to be much larger than that.

与地的质量相比，木星要大得多。

Fast enough to escape earth's gravity and begin the shuttle era.

以足够快的速度逃离地引力，从此开始航天飞机。

The journey of these emissions begins deep underground in the earth's core.

这些排放物来自于地核深处。

It is earth's constant companion in the dark emptiness of space.

在黑暗空虚的太空中，它忠实地陪伴地。

If one of these rocks hit's the earth's atmosphere, it becomes a meteor.

如果中一个流星体撞上了地的大气层，它就会变成流星。

These ocean waves are among the earth's most complicated natural phenomena.

这些海浪属于地上最复杂的自然现象。

Scientists have reason to believe that the earth's temperature is rising.

科学家们有理由相信地的温度正在上升。

For example, the earth's population is rising.

例如，地上的人口数量正在增加。

This and other gyres cover about twenty-five percent of the earth's surface.

太平洋环流和他环流覆盖了地表面约百分之二十五的面积。

What is a rejection in love judged against the earth's 4. 5 billion year history?

和地45亿年的历史相比，爱情受挫算什么？

Long before dolphins swam the seas, their near look-alike ichthyosaurs inhabited the earth's oceans.

远远早于海豚在海中畅游之前，外形与极为相似的鱼龙就已经栖息在地的海洋中了。

Or, 'twenty miles below the earth's surface', definitely not immediately under it.

再有“地表20英里以下”，指的绝对不是指紧挨着地表的地方。

The rainwater slowly dripped down to the earth's crust.

雨水缓缓滴落到地壳上。

The Nile is the earth's resource, it belongs to the earth.

尼罗河是地的资源，是属于地的。

The earth's poles are called the North Pole and the South Pole.

地的极点称作北极和南极。

It describes how different colours of sunlight interact with the earth's atmosphere.

它描述了不同颜色的太阳光是怎样与地大气层互相影响的。

The other main factor at play is what's happening above the earth's surface.

另一个起作用的主要因素是地表面发生的情况。