A sustainable future for coal depends on our ability to integrate cleaner practices without sacrificing the livelihoods of those who depend on the industry.

网球是一项残酷的运动。没有平局。如果你输了，你就出局了。

Deep learning is a powerful tool for solving complex problems.

No matter how good you get you can always get better, and that's the exciting part.

没有所谓的中立艺术。

我不知道艺术是什么，但我知道它能做什么。