1.ced, ceed, cess=go, 行走，前进 accede antecedent intercede recede

　　excessive succeed access successive recession

　　2.celer=quick, speed, 快，速 celerity accelerate decelerate

　　3.cent=hundred, 一百 centimeter percent percentage

　　4.centr=center, 中心 concentrate centripetal concentric

　　5.cern, cert, cret=sure, separate, 搞清，区别 concern discern discernmible ascertain

　　certificate discrete discreet

　　6.chron=time, 时间 chroic chronicle anachronism synchronize synchronous

　　7.cid, cis=cut, kill, 切开，杀 decide homicide insecticide suicide concise

　　8.circ, cycl=ring, circle, 圆，环 circular circulate circuitous encircle bicycle recycle

　　9.cit=quote, call, 引用，唤起 excite incite recite

　　10.claim, clam=cry out, shout, 呼喊，叫喊 acclaim declaim disclaim exclaim reclaim clamor

　　11.clear, clar,clair=clear, bright, 清楚，明白 clarify declaration clairvoyanc

　　12.clin, cliv=lean, slope, 倾斜，斜坡 decline incline proclivity

　　13.clos, clud, clus=close, 关闭 closure disclose enclose conclusive

　　exclude recluse preclude include seclude occlude

　　14.corp, corpor=body, 身体，团体corporation corporate corporal corpulent

　　15.cracy=rule, 统治或政体，crat=ruler, 统治者 democracy autocracy

　　bureaucracy plutocracy theocracy monocracy

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