I don't know what you said just now is what mean 这句话有没有语法错误,有的话 请指出来

I don't know what you said just now is what mean 这句话有没有语法错误,有的话 请指出来
I don't know what you said just now is what mean 这句话有没有语法错误,有的话 请指出来

I don't know what you said just now is what mean 这句话有没有语法错误,有的话 请指出来
有的,语法错误加上语义啰嗦可以改为i didn't understand what you said just now