—— 请按键盘 空白键 开始游戏 ——

能源转型不是选择;它是我们星球生存的必要条件。
Topology is the study of the properties of a figure that are unchanged by any deformation.
Freedom is not something that anybody can be given. Freedom is something people take, and people are as free as they want to be.
用歌声温暖每个需要安慰的心。