{"a":{"definition":"n. the 1st letter of the Roman alphabet\nn. the blood group whose red cells carry the A antigen","phonetic":"ei","translation":"第一个字母 A; 一个; 第一的\\r\nart. [计] 累加器, 加法器, 地址, 振幅, 模拟, 区域, 面积, 汇编, 组件, 异步","word":"a"}}