—— 请按键盘 空白键 开始游戏 ——

通往性别平等的道路既有进步,也有持续的挑战。
The path to gender equality is paved with both progress and persistent challenges.
做你自己,因为别人已经有人做了。
在数学中,你不是理解事物,你只是习惯了它们。
Sustainability isn't an option anymore; it's a necessity for any responsible mining company.