previouslyadv.先前;在此之前
previousadj.以前的;先于;在 ... 之前
Previously fermented juice绿汁发酵液
Previous abdominal surgery腹部手术史
previously arranged signal约定信号
Previous paid blood donors既往有偿献血人员
Previous particle boundary原始颗粒边界
previously vaporized charge预先汽化进料
previously cultivated field熟旱田
previous arrangement system预先排列系统