Naruto is learning the elements of Wind Style Jutsu, and Kakashi lectures him on the difficulties of developing a new jutsu.
an S-rank difficulty level or
maybe even higher.
.ستكون بمستوى صعوبة من الرّتبة "س" أو أعلى
sarebbe da definirsi di livello S,
o forse più complessa ancora.
de dificuldade S, ou até maior.