water polo

beautifully-resounding (of the sound of striking together metals or jewels) / beautiful (of a melody)

passing a grade; making the year (being able to advance to the next academic year because of sufficient achievement).

to pass a grade

research association; research society / group of enthusiasts (as may be found in schools, colleges, etc)

helping the lepers

firmament

fur coat made with white fur of fox armpits, which has been prized since ancient times

rapid progress

advance rapidly