再见太阳!再见地球!
Let me see what on earth you can do.
让我看看你究竟能做什么。
When do you think we'll see the first Earth-like planet?
你认为我们什么时候可以看到第一课类地行星?
"Now,if you're on a star about 1,000 light years away, you see earth as it was 1,000 years ago.
VOA: standard.2010.04.16
The Focault pendulum is one example where you can see that the Earth is rotating around its own axis.
傅科摆就是一个例子,通过观察它,你会发现地球在自转
In fact, just because the world is round, you can already see if this is the Earth, to somebody that's the natural direction.
实际上,正由于地球是圆的,你们可以看到如果这是地球,对于某些人来说这才是惯常的方向
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