词根词缀：class-

【来源及含义】Latin: division according to rank; class, division, army, fleet

【同源单词】aclassis, class, classic, classical, classical archaeology, classical education

词根词缀：-ics

【来源及含义】Greek: a suffix that forms nouns and is usually used to form names of arts and sciences

【同源单词】acoustics, acoustoelectronics, acousto-optic, actinogenics, actinotherapeutics, actinotherapy