regainv.恢复；重回；复得regain the main road重新到大路上regain one's freedomregain one's footing恢复身体的平衡, 重...regain possession of[法] 重新获得 ... 所有权； 恢复 ... 占有regain consciousness恢复知觉, 苏醒过来regainer-maintainer(牙间隙)恢复保持器regain one's strength军团菌肺炎regain the river bank返回河岸regain the initiative变被动为主动regain one's composure卫生十字军团菌