词根词缀:hepta-, hept-
【来源及含义】Greek: seven; normally used as a prefix
【同源单词】hebdomad, hebdomadal, hebdomadally, heptachord, heptachromic adjective, heptad
【来源及含义】Greek: seven; normally used as a prefix
【同源单词】hebdomad, hebdomadal, hebdomadally, heptachord, heptachromic adjective, heptad