ab-,ac-,ad-,af-,ag-,an-,ap-,ar-,as-,at-,等加在同辅音字母的词根前，表示"一再"等加强意
celer
accelerate（v.(使)加速;加速;加快The runners accelerated smoothly around the bend.
赛跑运动员在转弯处顺畅地加速。
celer快速cumulate
accumulate（v.积累;积聚;(数量)逐渐增加;(数额)逐渐增长）I seem to have accumulated a lot of books.
我好像已经收集了很多书。
cumulate
（adj.堆积的；积蓄的）The navigation error doesn ′ t cumulate with time.
误差不随时间而累积。
（v.堆积；积蓄）Lets put this way, things have to cumulate through time.应该这样说，时间积累了很多东西
custom
accstom（v.使习惯(于);使适应）He was accustomed to rising early.
他习惯于早起。
custom（n.风俗;习俗;(个人的)习惯，习性，惯常行为;(顾客对商店的)惠顾，光顾）
This custom is found in people of all races throughout the world.这一习俗在全世界各种族中都有。（adj.定做（制）的）
So these things are custom fitted?所以这些面具都是定做的？dict
addict（n.吸毒成瘾的人;瘾君子;对…入迷的人）
Hes only 24 years old and a drug addict.他只有24岁，却是个瘾君子。（vt.使沉溺;使上瘾;使自己沾染（某些恶习））
Its so addicting, that you are going to play for hours!它使上瘾的，你要发挥好几个小时！dict（字典;词典;说）addictive（adj.使人上瘾的;使人入迷的）
I find jogging very addictive.我觉得慢跑锻炼很使人着迷。duce
adduce（v.引证;举出(证据、理由、事实等)）Let me adduce more evidence.
让我举出更多的证据。
duce（n.<意>首领，领袖）Wouldn want you to get in trouble with II duce here.
我不想让这里的老大找你的麻烦。
fable
affable（adj.和蔼可亲的;平易近人的）She is affable to everyone.
她对每一个人都和蔼可亲。
fable（n.寓言;寓言故事;谎言;不实之词;无稽之谈）
Fables can be understood on various levels.寓言可从不同的角度去理解。（v.讲故事;编寓言;虚构;杜撰;煞有介事地讲）
He had some motive in telling this fable.他讲这寓言故事是有用意的。
ford
afford（v.买得起;(有时间)做，能做;承担得起(后果);提供;给予）How on earth can she afford that?
她怎么可能负担得起呢？
ford(n.(可涉过或驶过的)河流浅水处)
(v.涉过，驶过(浅水))
They were guarding the bridge, so we forded the river.他们当时守着那座桥，我们就涉水过了那条河。firm
affirm (v.肯定属实;申明;断言)She affirmed her innocence.
她断言她是无罪的。
firm(n.商行;商号;公司)
The firm has close ties with an American corporation.这家商行与一家美国公司关系密切。(adj.坚固的;坚硬的;结实的;坚定的;确定的;坚决的;牢固的;稳固的)
The equipment must rest on horizontal and firm ground.此设备必须放置在水平并且坚固的地面上。(adv.稳固地)
(v.使强壮;使坚固;使坚实;坚挺;稳步上涨)
A rag soaked with pine tar; used on the handle of a baseball bat to give a batter a firm grip.吸收了松树焦油的布；使击球手更坚固的用于棒球的把柄上。aggression (n.好斗情绪;攻击性;侵犯;挑衅;侵略)
The research shows that computer games may cause aggression.研究显示，电脑游戏可能引起好斗情绪。grand
aggrandize (v.吹捧，夸大(财富、权力或地位);使(建筑)更宏)They even manifest enough confidence in themselves and their vastlyaggrandized support systems.
他们甚至对于自己已经大大增强了的后勤系统表现了足够的信心。
grand (adj.壮丽的;堂皇的;重大的;(用于大建筑物等的名称)大;宏大的;宏伟的;有气派的)It is all part of his grand design.
这都是他那宏图大略的一部分。
aggravate (v.使严重;使恶化;(尤指故意地)激怒，惹恼)
His illness was aggravated by anxiety.他的病情因焦虑而加重。announce(v.宣布，宣告(决定、计划等);(尤指通过广播)通知;声称;宣称)
The government has announced plans to create one million new trainingplaces.政府已经宣布开设一百万个新培训名额的计划。pal
appal (v.使大为震惊;使惊骇)It appalled me that they could simply ignore the problem.
他们竟然对问题置之不理，令我非常诧异。
pal(n.朋友;伙伴;哥们儿;(对男子的不友好的称呼)家伙，小子)
He is my pal at school.他是我学校里的密友。(v.（和某人）结伴，共度时光;成为（某人的）朋友)
applause(n.鼓掌;喝彩)
There was a great round of applause when the dance ended.舞蹈结束的时候，爆发出了一阵热烈的掌声。appreciate(v.欣赏;赏识;重视;感激;感谢;欢迎;理解;意识到;领会)
I would appreciate it if you paid in cash.假如你支付现金的话，我会不胜感激。point
appoint(v.任命;委任;安排，确定(时间、地点))They have appointed a new head teacher at my sons school.
我儿子读书的学校任命了一位新校长。
point(n.论点;观点;见解;重点;要点;核心问题;意图;目的;理由)
There is, in addition, one further point to make.此外，还有一点要说。(v.(用手指头或物体)指，指向;瞄准;对着;朝向)
She pointed in my direction.她指向我这边。range
arrange(v.安排;筹备;整理;排列;布置;谱写，改编(乐曲))
I must arrange my financial affairs and make a will.我必须把我的财务安排好，并立下遗嘱。range
(n.一系列;(变动或浮动的)范围，界限，区间;类;种)The article covered a wide range of topics.
这篇文章讨论了一系列广泛的论题。
(v.(在一定的范围内)变化，变动;包括(从…到…)之间的各类事物;(按一定位置或顺序)排列，排序)The results show that the quantity ranges much, the quality little.
结果表明水量变化数倍，水质变化较小。
rest
arrest(v.逮捕;拘留;阻止;中止;吸引(注意))
Our information is that the police will shortly make an arrest.我们得到的情报是，警察不久就要逮捕人了。(n.逮捕;拘捕;停止;中止)
They were arrested for brawling in the street.他们因在街上打斗而遭到拘捕。rest(n.剩余部分;残留;其余;其余的人;其他事物;其他;休息时间;睡眠时间)
As for the rest of it, it is of a very different kind.而梦的剩余部分，性质有很大的不同。(v.休息;放松;(被)支撑;(使)倚靠;托;被搁置;中止)
You deserve a rest after all that hard work.辛苦劳累那么久，你该休息一下了。rive
arrive到达(v.到达;抵达;送达;寄到;发生;到来)We arrived in good time for the connection to Paris.
我们到达时有充分的时间接上去巴黎的联运。
rive(n.裂罅;碎片)
The party was riven with factional fighting.派系争斗使该党四分五裂。(v.撕开;拧去 (from; away; off);使烦恼;分裂)
The four provinces are riven by deep family and tribal conflicts这4个省被严重的家族和部族纷争弄得四分五裂。assault
(n.侵犯他人身体(罪);侵犯人身罪;攻击;突击;袭击;(向困难或危险事物发起的)冲击)Police were shocked by the viciousness of the assault.
警方对这一攻击的残忍感到震惊。
(v.猛烈攻击，袭击，侵犯人身(尤指构成罪行);使(感官)难受)The enemy assaulted the small town.
敌人突然对小镇发起猛烈攻击。
assiduou(adj.兢兢业业的;勤勤恳恳的)
His spirit of assiduous study is worthy of emulation.他刻苦钻研的精神，值得效法。assist
(v.帮助;协助;援助;促进)We will assist you in finding somewhere to live.
我们将帮你找个住的地方。
(n.(曲棍球等)助攻;(棒球等)助杀)He is first all time in total assists and total steals.
他也是历史上在总助攻次数和总抢断次数排第一的球员。
associate
(v.联想;联系;交往;(尤指)混在一起;表明支持;表示同意)I have gained a lot by associating with him.
我和他交往，得益不少。
(adj.非正式的;准的;副的;联合的;有关联的)You are the Special Assistant to the NASA Associate Administrator for SpaceStation.
你是美国太空总署副署长的特别助理，处理太空站的事务。
(n.同事;伙伴;合伙人;准学士(获得两年制高校学位))Ive got a new job and a new set of work associates.
我有了新工作和一班子新同事。
assimilate
(v.透彻理解;消化;吸收;(使)同化;使吸收，使接受(想法、态度等))These changes were gradually assimilated into everyday life.
这些改变逐渐渗进了日常生活。
sure
assure
(v.使确信;向…保证;弄清;查明;确保;使确定)He is assured of his place in history.
他相信自己一定会在历史上占有一席之地。
sure
(adj.确信;确知;肯定;有把握;一定，必定，无疑(将会得到或发生);无疑(会做或会发生))She felt sure the letter had some hidden meaning.
她确信那封信中有言外之
(adv.(表示同意)当然;(加强语气)确实，的确;(回答他人的感谢)不用客气，应该的)He sure looked unhappy.
他的确显得不高兴。
attach(v.把…固定，把…附(在…上);认为有重要性(或意义、价值、分量等);重视;(有时不受欢迎或未受邀请而)参加，和…在一起，缠着)
They attach great importance to the project.他们高度重视这个项目。attain(v.(通常经过努力)获得，得到;达到(某年龄、水平、状况))
He attained a good mark in the examination.他在考试中得到好分数。tend
attend(v.出席;参加;经常去，定期去(某处);注意;专心)Wed like as many people as possible to attend.
我们希望出席的人越多越好。
tend(v.往往会;常常就;趋向;走向;倾向;趋于;照料;照管;护理)He tends to avoid all physical contact.
他倾向于避免一切身体接触。
tract
attract(v.吸引;使喜爱;引起…的好感(或爱慕);招引;引起(反应))The festival attracts people from a wide area.
这个艺术节吸引了四面八方的人。
tract(n.(连通身体组织或器官的)道，束;大片土地;地带;(尤指宣扬宗教、伦理或政治的)短文，传单，小册子)A vast tract of land is ready for development
一大片广阔的土地可待开发。
test
attest(v.证实;是…的证据;作证，证明(如在法庭上))I can personally attest that the cold and flu season is here
感冒和流感季节来了，对此我有切身体会。
test(n.测验;考查;(医疗上的)检查，化验，检验;试验;测试)
Test results will be fed back to the schools.测验的成绩将反馈给各学校。(v.测验;考查;试验;检查;化验;检验;测试)
She may be testing her mother to see how much she can take before she throws her out.她可能在试探她妈妈，看她能忍耐到什么程度才会把她撵出家门。
