—— 请按键盘 空白键 开始游戏 ——

Sustainability is not an option; it's a necessity for the future of mining.
The heart of the Waldorf method is that education is an art—it must speak to the child's experience. To educate the whole child, his heart and his will must be reached, as well as the mind.
当混凝土捕捉到光线时,它可以像木头一样温暖。
The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.