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
