regain          
verb [ T ] uk/rɪˈɡeɪn/ us/rɪˈɡeɪn/
B2 重新获得;恢复;收回
to take or get possession of something again
  The government has regained control of the capital from rebel forces. 政府已从叛军手中收复了首都。 
 She made an effort to regain her self-control. 她竭力控制住自己。 
  literary(尤指经历困难或危险后)回到,重返,返回(某地) 
to reach or return to a place, especially after difficulty or danger
  The swimmers struggled to regain the shore. 游泳者们挣扎着游回岸上。 
 - More examples
 - After a bad year, she has regained her form.
 - They regained their freedom after ten years of unjust imprisonment.
 - He looked embarrassed for a moment, then quickly regained his poise.
 - They regained the lead in the 21st minute.
 - He lost consciousness after his accident and never regained it.