算术级数 suàn shù jí shù

DEFINITIONS

  1. arithmetic series (such as 2+4+6+8+...)

CHARACTERS

算 suàn
HSK 3
count, calculate, figure; plan
术 shù
HSK 4
art, skill, special feat; method, technique
级 jí
HSK 3
level, rank, class; grade
数 shù
HSK 3
number; several, count; fate