For example, the earth's population is rising.

例如，地上人口数量正在增加。

" And what on earth's a Squib? " said Harry.

“哑炮又究竟是什么？”哈利问。

Some of the earth's resources are starting to disappear.

地上一些资源正开始消失。

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

雨水缓缓滴落到地壳上。

Three-fourths of the earth's surface is covered by water.

地表面四分之三被水覆盖。

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

地表上纬度一度相当将近七十英里。

The inexhaustible renewable resource of heat from the earth's core.

即地核取之不尽、用之不竭可再生能源。

Scientists worry that this could eventually alter earth's climate.

科学家担心这最终可能会改变地候。

It's referred to as earth's twin.

也被称为地孪生兄弟。

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

在黑暗空虚太空中，它忠实地陪伴地。

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

这些海浪属于地上最复杂自然现象。

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

科学家们有理由相信地温度正在上升。

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

尼罗河是地资源，是属于地。

The core is the energy source that drives the earth's machine.

地核是驱动地机器能量源。

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

这是因为地大层保护我们免受辐射伤害。

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

使其能以足够快速度逃离地引力，从此开始航天飞机时代。

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。

Many of the earth's animals are dying out.

地上许多动物正在灭绝。

Once beyond earth's orbit, astronauts will dock with a small space station.

一旦超出地轨道，宇航员将与一个小型空间站对接。

He was the ultimate predator in earth's history.

它是地历史中终极掠食者。