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:-ive
【来源及含义】Latin: a suffix; tending to; of the quality of, inclined to
【同源单词】adhesive, adhesive, advertive, affirmative, aggressive, agitative