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1·Our planet Earth is comparatively small, with only about 24,902miles around the equator.

我们的地球相对来说比较小，绕赤道一周只有24902英里。

2·Our planet Earth, together with other planets, revolve around our Sun in what is called our Solar system.

我们的行星地球，连同其他行星，围绕我们的太阳旋转，这就是我们的太阳系。

3·Among other things, the findings demonstrate that dramatic climate change is nothing new for planet Earth.

在其它事情中，这些发现表明，剧烈的气候变化对地球来说并不是什么新鲜事。

4·That's about how high an object would have to be orbiting straight up from the equator to constantly remain directly above the exact same spot on the rotating planet Earth.

这大约是一个物体从赤道沿轨道垂直向上运行的高度，这样它就可以一直保持在地球同一地点的正上方。

5·Many people know that rubbish is a big problem on planet Earth.

许多人都知道垃圾是地球上的一个大问题。

6·Isn't that strange that the Milky Way is the galaxy that the planet earth is in, and most of us have never seen it?

银河系是地球所在的星系，而我们大多数人从未见过它，这不是很奇怪吗？

7·Please enjoy your stay on Planet Earth.

请享受在地球逗留的时光。

8·You want to help planet Earth, is that right?

你们想拯救地球，是不是？

9·We tricked you… We are from right here, Planet Earth.

你被忽悠了......我们就来自这里，地球。

10·Four billion years ago was a hellish time on planet Earth.

四十亿年前的地球如同地狱一般。