老大后来跳了代2,微1。都是自说自话跳的,老美理论也没错。
回答: 不过我老大就是代1开始觉得数学有趣的,原来一直说数学无聊。完全老美式,老二也是代1开始感兴趣, 不过她以前没说数学无聊,也没多聊
由 燕子飞回来_88
于 2018-09-24 19:30:50
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