—— 请按键盘 空白键 开始游戏 ——

酸和碱是互补的;没有另一个,一个就无法存在。
The best way to predict the future is to invent it.
Collaboration across the supply chain is key to driving meaningful change.
The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.