Thus again is only fair (2-2)
I believe the answer is:
so-so
But I can't explain it at all! Could you help me understand?
(Other definitions for so-so that I've seen before include "Mediocre" , "Tolerable, indifferent" , "Of middling quality" , "Only moderately good in repetitive way" , "Informally, only moderately good or well" .)