十亿年以后，你们就已经消耗完,所有的旋转动能,然后地球就不会再旋转。
then, you would have consumed up all the rotational kinetic energy and then the earth would no longer be rotating.
“月球16号”降落在月球表面(完全是在黑暗中)，收集了月球岩石，打包，然后带回地球。
Luna 16 landed on the lunar surface (in total darkness, no less), collected moon rocks, packed them up, and returned them to Earth.
这个网会捕获垃圾，然后将其拉到地球大气层中烧掉。
The net catches the junk and then pulls it into the earth's atmosphere to burn up.
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