如何翻译比较地道

To complete one's own task is far from enough. One should cooperate with other divisions and help them improve teir work.

To well done your own business is not enough, but also you have to cooperate with other departments, to help them get improved.

It isn't enough to just finish the job of yourself.
try to cooperate with other parts[departments] and do them a favor for advance

That's not enough to do own work well, but also cooperate with other departments and help to improve themselves .

It's not enough to do my own things well. I must cooperate with the colleague from other departments in order to help them improve themselves.