Translation:That businessman is not satisfied with his success.
Yes, I have been getting this wrong for eons, because the audio is not correct. Another DL FAIL. Huy can't correct the audio, but maybe it's possible to add 'sự thành công' to the correct answer list? That doesn't still help with the fact the audio needs a slow down button badly, so that each word is slowly and clearly pronounced.
They are both correct, btw, in other exercises 'sự thành công' is accepted.
Can a native speaker please answer this: Is the above sentence supposed to have a negative or a positive connotation? Like, is it a good thing that he is not satisfied, because he keeps wanting to get further ahead, or is it a negative meaning, like kinda "Shame on him" for not being happy with what he's achieved?