1.pugn=fight, 打斗 impugn pugnacious(好斗的)

　　2.rap, rapt, rav=snatch, 捕，夺 rapacious(贪婪的)ravenous(贪婪的)rapture(狂喜)

　　3.rog=ask, 要求，问 abrogate(废除)，derogate(贬低)

　　4.rupt=break, 断裂 erupt abrupt corrupt rupture

　　5.sati, satis, satur=enough, full of food, 足够，饱足 satify satiable

　　6.scend, scens, scent=climb, 爬，攀 ascend descend condescend descendant

　　7.sci=know, 知道 conscious conscientious presient

　　8.scrib, script=write, 写 describe subscribe inscribe prescribe proscribe

　　9.secut, sequ=follow, 跟随 prosecute presecute consequence consequential subsequent

　　10.sect, seg=cut, divide, 切，割 section sector intersect segment

　　11.sens, sent=feel, 感觉 sensible sensitive sentimental resentful dissent assent consent

　　12.sert=join, insert, 加入，插入 insert assert desert desertation

　　13.sid=sit, 坐 assiduous dissident reside preside

　　14.sist=stand, 站立 insist consist superstitious(封建的)

　　15.soci=companion, 同伴，社会 social associate

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