Translation:Interesting lecturers are the most important thing.
But you have not and I can not go ahead from the last question because it just does not take it and the green line starts to diminish and diminish... could you fix it please
Give it a couple more days. Apparently it can take up to a week to be cleared from the system.
The audio says: I think that's the most interesting thing. אני חושב שזה הדבר הכי מעניין.
This is just a slightly more formal version of what you have written. They mean the same thing.
I literally deleted this sentence a few days ago, so this is frustrating. I’ll see if Duolingo employees can sort it out.