assembly n. 集合, 装配, 集会(assembly line/装配线);
assess v. 评估(财产, 价值, 人物、工作等); (assess – evaluate – value评估)
assist v. (在某方面)帮助,援助,协助 ((assist sb. in doing sth/to do sth/在…方面帮助某人))
assistant n. 助手, 助理(assistant engineer/助理工程师; assistant professor/副教授);
associate v. 结交, 由……联想到……, 把……联系起来(associate one thing with another/把某一事与另一事联系起来; ……be associated with sth./……和……有关/……和……有联系)
association n. 联合,协会, 社团:
assume v. 假设(assume – suppose ),承担(assume – take on - acccept), 呈(态度, 姿态, 位置) (assume new duties/承担新的职务; assume office/就职; assume responsibility/负责, 承担责任);
assure v. 保证 (assume - ensure) ,使安心,让…放心 (assure sb. of/that…/向某人保证…)
astonish v. 使吃惊(astonish – surprise –shock)(be astonished at sth. /对…感到惊讶);
astronaut n. 宇航员
at prep.[位置, 场所, 地点,时间]在…时,在…中,在…方面,向,(表示速度,价格等)以(arrive at…/到达…; at my uncle's/在我叔父家;at the foot[top] of the mountain /在山脚下[顶上]; at the meeting/在会议上; at ten o'clock/在十点钟; at (the age of) forty/在 40 岁的时候; at the beginning of the month/在月初; at christmas/在圣诞节; aim at…/对准……; throw …at …/朝…扔…;be pleased at…/对…感到高兴;be surprised [frightened] at …/听到…而吃惊; at one's request/应某人的请求; at the rate/speed of …/以每小时……速度);
athlete: n. 运动员
atlantic adj.大西洋的;大西洋沿岸的(the atlantic ocean /大西洋);
atmosphere n. 大气, 空气, 气氛;
attack n./v. 进攻, 疾病)侵袭,发作(a heart attack /心脏病发作);
attach v. 贴上,系上,缚上(attach… to … 把…贴/系在…上面)
attempt n. (常与at, on, to连用)努力, 尝试v. (常与to连用)企图, 尝试 (attempt to do sth./make an attempt to do sth. /试图做…);
attend v. 注意, 出席(at), 参加, 上(学, 教堂) ( attend school /上学; attend a lecture /听讲课; attend (at) a wedding /出席婚礼; be attended by/由……陪同; 由……照料);
attention n.注意, 关心, 关注, 注意力( pay attention to ……/注意……);
attitude n.态度, 看法, 意见(attitude to/towards…/对…的态度, take [assumed] an attitude of 取…态度);
attract vt. 吸引(attract –appeal to), 诱惑(attract one‘s attention/引起某人注意);
attractive adj. 有吸引力的(attractive – appealing ), 漂亮的(attractive – beautiful – pretty );
attribute vt. 把……归因于(to)……, n.属性, 特质, 标志(attribute ……to ……/把……归因于);
audience n. 听众, 观众, 读者(a large audience/很多观众);
august n.八月(略作aug);
aunt n. 伯母, 婶母, 舅母, 阿姨;
australia n. 澳大利亚,澳洲:
author n. 作家, 着者(best author畅销书作者; joint author/合着者);
authority n. 权威, 权力, 权势, [pl.]当局, 负责人;
automatic adj.自动的,机械的;
automobile n.汽车,小汽车;
autumn n. 秋, 秋季(美国普通称fall) (in autumn/在秋天; in (the)late autumn/在晚[深]秋);
available adj.可用到的, 可利用的, 有用的, 有空的;
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