[Tn] get (sth) back again after losing it; recover 重新获得（失去之事物）; 恢复: regain consciousness 恢复知觉 * regain one's freedom, health, sight 恢复自由﹑ 健康﹑ 视力 * Our troops soon regained possession of the town. 我部队不久重克该镇. 
[Tn no passive 不用於被动语态] reach (a place or position) again 再到（某地或某位置）: regain the river bank 返回河岸 * regain one's footing/balance, eg after slipping, stumbling, etc 重新站稳[恢复平衡]（如滑了一下﹑ 绊了一下等之後）.