i'm writing to tell you about the discussion we recently had about whether..以上开头有没有错?为什么前面有about后面又about?

i'm writing to tell you about the discussion we recently had about whether..以上开头有没有错?为什么前面有about后面又about?
i'm writing to tell you about the discussion we recently had about whether..
以上开头有没有错?为什么前面有about后面又about?

i'm writing to tell you about the discussion we recently had about whether..以上开头有没有错?为什么前面有about后面又about?
没错