# Sophia：哲学知识共享社区 > 线上地址：[https://sopher.group] > 注：目前暂不适配移动端。 ## GitHub * 前端：[https://github.com/airingursb/s
Grade 2 is a digital library of engaging fictional and non-fictional books in history, science, and language arts.
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An interactive story book for children. Each page has around of four or five points for touch or mouse clicks that will