不一定9月份完成，最晚可以到11月中旬发完。怎么翻译，等

9月拼写有问题啊大哥
it is not sure to finish in September, whoever, it can be finished no later than mid November

if you can't finish it at September, you can finish it at latest at middle of November.

not sure if it can be finished in semptember, but it definitely is the latest by the mid term of november.

I'm not sure if it can be finished in Sep. anyway it can be finished no later than mid November.