中心地的六边形排列最小化了市场区域的重叠。

Happiness is rarely absent; it is we that know not of its presence.

环境管理不是可选的——这是我们对后代的责任。

I think， I think when it’s all over， it just comes back in flashes. You know， it’s like a kaleidoscope of memories. But it just all comes back. But he never does.

写得越多，越发现自己无知。

The world needs reliable energy, and coal still plays a critical role in providing it.