—— 请按键盘 空白键 开始游戏 ——

Farmers are the backbone of our food system; their knowledge and dedication must be valued.
You don’t write because you want to say something; you write because you’ve got something to say.
Peace is not free, it requires constant effort to maintain.
在科学中最令人兴奋的短语,预示着新发现的不是“我找到了!”,而是“这有点奇怪……”
Mathematics is the music of reason.