词根词缀：ag-, agen-, act-, agi-, agit-

【来源及含义】Latin: to set in motion, to hurry, to shake; to drive; to do, to act; to lead, to conduct, to guide

【同源单词】Ab actu ad posse valet illatio, Ab agendo, act, acta, Acta est fabula, acta sanctorum

词根词缀：contra-, contro-, counter, contre-

【来源及含义】Latin: against, opposed to, opposite, conflicting, different, clashing, unaccommodating

【同源单词】accounter, acrocontracture, contentious, contraband, contrabandist, contrabass