He crawled from print to print, sniffing at the earth, following the scent left in the tracks.

他从一个脚印爬到另一个脚印，嗅着泥土，跟着路上留下的气味。

《柯林斯英汉双解大词典》

Look at the Earth from space. Why does our planet look so blue?

从太空中看向地球。为什么我们的星球看起来如此之蓝？

youdao

He is always dreaming that he can fly to space to look at the earth one day.

他总是梦想着有一天能飞到太空中遥看地球。

youdao

It ends at the Dead Sea, the lowest point on Earth, four hundred meters below the level of the Mediterranean Sea.

VOA: special.2009.05.18

So the Earth is an inertial frame of reference, if you go in a train relative to the Earth at constant velocity, you're also inertial.

所以,地球是一个惯性参考系,如果你坐在相对于地球匀速运动的火车里,你也处于惯性状态

耶鲁公开课 - 基础物理课程节选

In the universe we-- Who knows what is out there in the universe but at least on Earth we may well be the only people there are.

在宇宙中，我们-,谁知道宇宙中有什么,但至少在地球上我们很可能是唯一的。

耶鲁公开课 - 死亡课程节选

Iridium is normally rare at the earth's surface, but it is more abundant in meteorites.

ECONOMIST: The rise of the dinosaurs

Does this cast doubt on the data which show warming at the earth's surface?

ECONOMIST: A heated controversy | The

WWF, meanwhile, looked at conditions at the Earth's other climatic extreme - the cold of the Antarctic peninsula.

BBC: Low faith in biofuels for climate