a deuxadv； adj.；〈法〉两人一起(的)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 disbelieving look/smile/laugh怀疑的表情/微笑/笑声a medicine with special properties.具有特殊性能的药a silver candlestick/chain/coin银烛台/链/币a betting/drinking/fighting man赌博/喝酒/打架的人a generous/large/small donation慷慨/大量/少量捐助A severity characterization of trauma创伤严重程度特征评价法A narrow passage between buildings.小巷，小街建筑物之间狭窄的过道a jet aircraft/fighter/airliner喷气式飞机/战斗机/客机A step-by-step instruction manual逐项解释的说明书.a first-aid course/kit/manual急救课程/药箱/手册