自由与进步的脚步永不停息！这是最好的时代，也是最坏的时代；这是智慧的时代，也是愚蠢的时代It was the best of times, it was the worst of times;it was the age of wisdom, it was the age of foolishness本群欢迎讨论 技术、科学、民主、自由的话题招募管理，有意者私聊@JeffreyTG