Hi this is @MapMaths...
嗨这是 @MapMaths……
This is the official Chinese account of @MapMaths.
这是 @MapMaths的正式中文账号。
I‘ll make Chinese & translated projects.
我会做中文和翻译过的项目。

And do sth. for my Chinese friends.
并为我的朋友们做点事。
So I have to make this third account.
所以我不得不做这第三个账号。