词根词缀：proto-, prot-

【来源及含义】Greek: first; foremost, front, earliest form of, original, primitive; chief, principal; usually used as a prefix

【同源单词】apolipoprotein, cryoprotein, fetoprotein, glycoprotein, hyperlipoproteinemia, hypolipoproteinemia

词根词缀：testa-, test-

【来源及含义】Latin: testu, testum; earthen container, earthen pot; shell, skull

【同源单词】abdominal ultrasound test, acid test, ACT test, SAT test, test, test protocol