A
aridity n.干旱;乏味
arithmetic n.算术
arrange v.安排;排列
arrangement n.安排;准备工作
array n.部署;陈列;大批
arrogance n.傲慢;自大
artifact n.人工制品
artery n.动脉;要道;
arthritis n.关节炎
artificial a.人工的;人造的;
arboreal:树木的,树状的:
arduous:艰巨的,努力的:
ascertain:查明,:确定:
as for (as to)至于;关于
as if (as though)好像;仿佛
ashy n.灰;灰烬;骨灰;遗骸
aspect n.方面;外观;样子
aspiration 强烈的愿望,志向
assemble v.集合;装配
assess v.评核;估价
asset n.财产;优点
assign v.指派;分配
assignment n.任务
assimilate v.吸收;使同化
assistance n.协助;援助
assistant n.助理
associate v.使联合;使有联系;交往
associate n.伙伴;同事;副的
association n.协会
assume v.假定;设想
assumption n.假定;假设
assurance n.信心;保证;保险
asthma n.哮喘症
astonish v.使惊讶;使吃惊
astound v.震惊