By the light of the moon
本文作者: TEENS
英语语音下载 你的机器需要安装最新的Flash播放器, 点这里获得!
我们为什么要探索月球的奥秘?
Look into the sky at night - what do you see? It’s the moon, of course. Since the beginning of time, the moon has inspired scientists and artists alike. It is our closest neighbor in space - and yet, for many years, it was a mystery (谜) to mankind.
|  |
| | |
Loading ...
| | | |
|