—— 请按键盘 空白键 开始游戏 ——

如果你借了什么东西,试着在归还的时候把它变得比你借到时的状态更好。清洁它、打磨它、填充它。
The most important tool in science is not the microscope, but the mind.
我不是在装酷,我只是在做自己。
Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is most important.