常见英语前缀a-/an-==no;without;lack,amateur不熟练的,业余的,anonymous匿名的,asocial不好社交的,anechoic消声的,anharmonic不和谐的,anarchism无政府主义,acentric无中心的,amoral非道德性的,asexual无性别的a-==in;on;at;by;with;to,asleep在熟睡中,ahead向前,在前头,abreast肩并肩地,aside在一边,abed在床上,abloom开花a-/an-==加强意义,aloud高声地,aright正确地,awake唤醒,aweary疲倦的,annotate注释,announce宣布,通告ab-==from;awayfrom,abnormal不正常的,abroad国外的,abuse滥用,absorb吸去,abaxial离开轴心的,abend异常终ac-==at;to,或表示加强意义,accustom使习惯,account计算,算帐,accredit信任,accompany陪伴,acclaim欢呼,喝彩,accomplish完成ad-==to;toward;forward,advice建议,advocate倡导,adjoin临近adjust调整,admixture混杂,adventure冒险af-==at;to,或表示加强意义,affright震惊,恐惧,affix附加,贴上,affirm肯定,确实ag-==at;to,或表示加强意义,aggrandize增大,aggravate加重,aggrieve使悲痛amphi-==两、双,amphicar水陆两用车,amphibian水陆两栖的,amphitheatre两边都可观看的剧场,圆形剧场ante-==before,antecedent先前的,先行的,antetype先型,原型,anteport前港,外港,anteroom前室,接待室,antedate比实际早的日期,antestomach前anti-==against,antipathy反感,antifreeze防冻,antiwar反战的,anti-imperlialist反帝的,antiageing防衰老的,antitank反坦克ap-==加强或引伸意义,appoint指定,任命,appraise评价,appease平息,绥靖ap-/apo-==离开,apogee远地点(远离地球之处),apostasy脱党,叛教,aphelion(天文)远日点ar-==at;to,或表示加强及引伸意义,arrange安排,布置,arrect直立的,arrear在后,拖延arch-==1)big;chief.2)ancient,archbishop大主教,archaeology考古学,archaic古体的,古风的as==to;forward,assign派出,assent同意,assort分类,assimilate同化,吸收,assure使确信,担保,associate联合,结at-==at;to,或表示加强及引伸意义,attrap使入陷阱,attest证明,attract吸引auto-==self;personally,automation自动化,autograph亲笔,autoalarm自动报警器,autocriticism自我批评,autorotation自动旋转,autobiography自传be-==makeorcausetobe,befog使迷糊,befit适宜,belittle贬低,befriend以朋友相待,becalm使镇静,befool欺骗,愚弄be-==加以...,饰以...,用...(做某事),bepowder在...上撒粉,bejewel饰以珠宝,becloud遮be-==在,beside在...旁,below在...下面,before在...之前be-==加强及引伸意义,befall降临,发生,bespatter溅污,belaud大加赞扬bene-==well;good,benign和善的,benevolent乐善好施的,benefit好处,benediction祝福,benefaction恩惠,善行,beneficent行善的bi-==two,bicycle自行车,bilateral双方,bimonthly双月刊,biweekly双周刊,bicolor两色的,bilingual两种语言的by-==旁、侧、非正式、副,byroad小路,僻径,bywork业余工作,byname别名,绰号circu-==around,circulate流通,circumnavigate环球航行,circumspect考虑周到的,circumplanetary环绕行星的,circumpolar在两极周围的,circumaviate环球飞co-==together,coaction共同行动,cooperate合作,coeducation男女同校col-==together,collaboration协作,勾结,collingual用同一种语言的,collocate并置,并列com-==together,compatriot同胞,同国人,combine联合,结合,commiserate同情com-==加强或引伸意义,commove使动乱,compress压缩,commemorate纪念con-==together,concolorous同色的,connatural同性质的,contemporary同时代的con-==加强或引伸意义,conclude结束,终结,confirm使坚定,consolidate巩固,加强contra-==against,contradiction矛盾,controversial可能引起争议的,contraclockwise逆时针方向的,contra-missile反导弹导弹,contraposition对照,针对,contraband走私,违法交cor-==together,correlation相互关系,corradiate使(光线)共聚于一点,correspond符合,相应cor-==加强或引伸意义,correct改正,纠正,corrupt腐败,败坏,corrugate使起皱纹counter-==opposite,counterrevolutionary反动的,countermeasure对策,应策,countercurrent逆流,countermarch反方向行进,counterattack反攻,反击,countercharge反控,反告de-==downfrom,deplane下飞机,dethrone使离王位,derail使(火车)脱轨de-==向下、降低、减少,depress压低,压下,depopulation人口减少,devalue贬值de-==not,denationalize非国有化,demilitarize使非军事化,demobilize复员de-==除去、取消、毁,desalt除去盐份,deforest砍伐森林,decontrol取消管制dec(a)-==ten,decade十年,decimal十进位制的,decathlon十项全能deci-==十分之一,decigram十分之一克,decimeter十分之一米,decilitre十分之一升demi-==半,demigod半神半人,demi-fixed半固定的,demiwolf半似狼之犬di-==二、双,diatomic二原子的,disyllable双音节的,dichromatic两色的dia-==through;between;across,diameter直径,dialogue对话,diagnosis诊dif-==1)apart.2)not;opposite,diffluence分流,diffident不自信的,diffuse散开,散布dis-==不、无、相反,dislike不喜欢,disagree不同意,discontinue中断,disorder混乱,disbelieve不信,disproof反证,dishonest不诚实的,dispraise贬损,非难,disappear消失,disremember忘记,discomfort不舒服,disability无能,无力dis-==取消、除去、毁,disorganize瓦解,disroot根除,discourage使失去勇气,disrobe脱衣,disarm解除武装,裁军,dishearten使失去信心,disburden解除负担,discolor使褪色,dismember解体dis-==加在含有分开、否定等意义的单词前,作加强意义,dispart分离,裂开,dissever分裂,切断,disseminationdis-==分开、离、散,dissect切开,dissolve分离,溶解,distract分心,转移,dispense分配,dispel驱散,dissipate驱散,浪费dis-==有时作di-,,dispirit使气馁,使沮丧,divorce离婚,digress离正题,入歧路dys-==不良、恶、困难,dysfunction(医)机能失调,功能紊乱,dysphonia发音困难,dyspepsia消化不良,dyspathy反感,dysgenesis生殖力不良,dysopsy弱视e-==加强或引伸意义,evaluate评价,elongate使延长,拉长,estop阻止,禁止,estrange使疏远,evanish消失,elaborate精心制作,详细描述e-==出、外,eject投出,掷出,emigrate移居国外,elect选出,emerge浮出,出现,erupt喷出,evadeef-==出、离去,effluence流出,effable能被说出的,effoliation落叶em-==表示置于...之内、上...,embay使(船)入湾,embus上车,装入车中,embosom藏于胸中,怀抱,emplane乘飞机,embed安置,embog使陷于泥沼中em-==表示用...做某事、饰以...、配以...,embalm涂以香料(防腐剂),embank筑堤防护,embar上门闩,囚禁em-==表示使成某种状态、致使...、使之如...、作成...,embow使成弓形,empower使有权力,授权,empurple使发紫,embody体现,使具体化,embitter使受苦,embrown使成褐色eco-==ecological,ecosphere生态圈,ecosystem生态系统,ecocide生态灭en-==表示置于..之中、登上...、使上...,entrain乘火车,encage关入笼中,encase装入,enplane乘飞机,encave藏于洞中,enroll登记,记入名册中,enthrone使登基,enshrine藏于神龛中,enfold包进、拥抱en-==makeorcausetobe,使成某种状态、致使...、使之如...、作成...,enable使能够,endanger使受危险,enlighten启发,启蒙,enlarge扩大,放大,enrich使富足,enslave使成奴隶,奴役en-==用...来做某事、饰以...、配以...,enchain用链锁住,enlace用带缚,entrap诱陷en-==家在动词之前,表示in,或只作加强意义,enclose围入,关进,entrust信任,委托,enforce强制执行,enkindle点endo-==内,endoparasite体内寄生虫,endogamy(同族)内部通婚,endogen内生植物eu-==good;well;easy,eugenica优生学,eulogize赞美,emphemism委婉语,euphonic声音优美的,eupepsia消化良好,euthenics优境学ex-==out;outof,exclusive不包括...的,expose揭露,emit发射出,export出口,输