—— 请按键盘 空白键 开始游戏 ——

不能通过正式手段从非正式到正式。
One can't proceed from the informal to the formal by formal means.
The only fence against the world is a thorough knowledge of it.
我为报纸致哀,我为新闻站台。
Sustainability isn't an option anymore—it's a necessity for any business that wants to thrive in the 21st century.
The future of energy is not either/or—it's all of the above.