—— 请按键盘 空白键 开始游戏 ——

States are rational actors that seek to maximize their relative power in order to ensure their survival in a competitive international system.
每一次发现都是向理解宇宙迈近的一步。
Sustainability must be at the core of every decision we make in the mining sector.
每个项目都是一次新的冒险,一次新的挑战。