aboriginal [ 7AbE5ridVEnEl ] adj.土著的, 原来的n.土著居民
(记)ori(=起源，升起)参考：origin起源oriental东方的
abortive [E5bC:tiv] adj. 早产的, 流产的, 失败的(failing to accomplish an intended objective; fruitless)
(例)We had to abandon our abortive attempts. 我们不得不放弃我们失败的尝试。
(记)Abort，Retry，Fail?异常中断，重试，失败?计算机上经常出现的提示
abound [E5baund] vi. 多, 大量存在, 富于, 充满(to be great in number or amount)
aboveboard adj. 无欺诈的(free from all traces of deceit)adv. 光明磊落地(forthright，straight)
(反)surreptitious ◆ barefaced/ aboveboard 暗中的 ◆ 公然的/ 无欺诈的
chicanery ◆ aboveboard action 欺诈 ◆ 光明磊落
abrade [E5breiVEn] v. 磨损(to rub or wear away especially by friction：erode)
(类)abraded·friction=vaporized·heat 磨损由于摩擦=蒸发由于加热
(反)abrade ◆ augment 磨损 ◆ 增加
(同)corrade, erode, gall, graze, rub, ruffle, wear
abreast [ E5brest ] adv 并排地，齐头并进的，比肩的(up to a particular standard or level)
(例)keeps abreast of the latest trends 与最新的潮流齐头并进。
(记)a+breast 胸
abridge [E5brIdV] v. 删减，缩短，压缩(to reduce the length of a written text;condense)
(反)condensed ◆ unabridged 浓缩的 ◆ 未压缩的
(反)amplify(扩大) extend in length;protract(延长)
(记)参考：abbreviate缩写;brief简报
(例)The rights of citizens must not be abridged. 公民权利不能擅予削减。
abrogate [5AbrEJ^eIt] v. 废除(法令等);取消(to abolish by authoritative action)
(反)embrace支持 uphold支持 institute创立
(记)ab(否定)+rog(问)+ate→不再值得过问→干脆取消;参考：interrogate(审问)
(例)This custom was abrogated years ago. 这一惯例多年前业已废除。
abrupt [E5brQpt ] adj. 突然的, 陡峭的, 生硬的(unexpectedly sudden)
(记)rupt折断 参考：rupture 破裂，裂开bankrupt破产corrupt v. 腐败，堕落
abscission [Ab5siFn] v. 切断
(反)abscission ◆ process of grafting 切断 ◆ 嫁接
abscond [Ab5skRnd] v. 潜逃(to depart secretly and hide oneself)
(类)abscond·leave=(steal/ pilfer)·take 潜逃·离开=偷·拿(偷偷与正常)
abscond·depart=secrete·store=lurk·wait 潜逃·离开=隐藏·储藏=埋伏·等待
scheme·plot =follow·shadow=leave·abscond 策划·阴谋=跟随·尾随=离开·潜逃
(记)abs(离开)+cond(隐藏) 参考：recondite(深奥的)condiment (调味品)
absentminded adj.心不在焉的，茫然的
absolute [5AbsElu:t] v. 绝对的，无限制的(complete;totally unlimited;certain)
(类)inevitable·chance=absolute·variability不可避免不会偶然=绝对不会改变(反面特征)
(反)absolute ◆ qualified 绝对的 ◆ 有限制的
absolve [Eb5zRlv] v. 赦免;使无罪(to set free from an obligation or the consequences of guilt)
(类)exculpatory·absolve=motivational·stir=hortative·encourage
辩解的·赦免=激发的·煽动=劝告的·鼓励(目的)
(反)inculpate 治罪 indict起诉
(记)ab+solve(解决) 联想：问题解决→无罪赦免 参考：solvent(可溶解的)
(同)exempt, discharge, dispense, excuse, relieve
(例)They agree to absolve us from our obligation. 他们同意免除我们的责任。
absorb [ Eb5sC:b ] vt. 吸收, 吸引;对光线吸收(不反射)
(反)exude流出;dissipate驱散 reflect反射
abstain [Eb5stein] v. 主动戒绝，自我抑制 (to refrain from something by one's own choice)
(类)mandatory·comply=forbidden·abstain 强制的·服从=禁止的·戒除(前者要求后者)
(记)ab(否定)+ stain(污点) 联想：不要污点→主动戒绝坏毛病
(例)abstain from traditional political rhetoric. 避开不用传统的政治修辞
abstemious [Ab5sti:mIEs] adj. 有节制的(restraint especially in the consumption of food)
(类)reticent·talk=abstemious·gorge 沉默寡言的很少谈论=节制的不贪吃