A-En.建筑工程师aart.一(个)；每一(个)；任一(个)n.英语字母表的第一个字母；学业成绩得优者；表示“最好”的符号a diplomatic dignitary外交界的显要人物A'nyemaqen suture belta thyroactive agent.一种甲状腺活性剂a narrow mountain path狭隘的山道aortic valve retractor主动脉瓣牵开器A Boy at a Goalpost.英式足球图片 Soccer.a workstation director作业长A blessing in disguise塞翁失马, 因祸得福a large supply of food大量的食物a skull and crossbonesn.骷髅旗(旧时海盗旗)