词根词缀：grad-, -grade, -gred, -gree, -gress

【来源及含义】Latin: walk, step, take steps, move around; walking or stepping

【同源单词】ad eundem gradum, aggradation, aggression, aggressive, aggressively, aggressiveness

词根词缀：latero-, later-, lateri-, -lateral, -laterally

【来源及含义】Latin: side, sideways; flank

【同源单词】ambilateral, anterolateral, bilateral, bilateralism, bilaterally, collateral