词根词缀:astro-, astr-
【来源及含义】Greek: star, stars, star shaped; also pertaining to outer space
【同源单词】apastron, archaeoastronomer, archaeoastronomy, astro-alchemist, astrobiology, astroblast
词根词缀:-ics, -tics [-ac after i]
【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