词根词缀：funct-, fungi-

【来源及含义】Latin: to perform, to execute, to discharge; performance, service, execution

【同源单词】allomeric function, arousal function, bifunctional, cofunction, damage function, defunct

词根词缀：liter-

【来源及含义】Latin: letter; a graphic symbol, a written character, an alphabetic sign

【同源单词】ad literam, alliterate, alliteration, alliterative, alliteratively, functional illiterate