—— 请按键盘 空白键 开始游戏 ——

Learning to read involves the development of attentional networks that allow children to focus on letters and words while ignoring distractions.
数学不是一项观赏性运动。
孔子说:“明智的人喜欢水,仁慈的人喜欢山;明智的人好动,仁慈的人好静;明智的人快乐,仁慈的人长寿。”
The minimum content of natural law is necessary for the survival of any society.