"Our dialogue was very productive."
Translation:Ο διάλογος μας ήταν πολύ αποδοτικός.
Human pronunciation: https://forvo.com/phrase/Ο%20διάλογός%20μας%20ήταν%20πολύ%20αποδοτικός./
Another one that should get the double accent (ο διάλογός μας) when Duo supports it.
Yes, I think we have mentioned that we are aware of that but that's the way we found the course when we began working on it. We are creating a new tree which will address these issues.