Mougc🌲

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我在研究怎么用这个论坛，我刚刚想修改我的用户名加入但是我输入成了(至少不是)，过了一分钟后我发现不必修改用户名。
I'm studying how to use this forum. I just wanted to modify my user name to join, but I typed (at least not). After a minute, I found it unnecessary to modify my user name.