retrieval [rɪˈtrivəl]

例句:

• The ship was buried, beyond retrieval, at the bottom of the sea.
  船已葬身海底，无法打捞。
  
• Its real purpose is the launching and retrieval of small aeroplanes in flight.
  它真正的用途是发射和收回飞行中的小型飞机。
  
• A special retrieval team arrived from Washington and located the crashed craft.
  华盛顿的一支修复队驻扎在闪电地点.
  
• Membrane retrieval...would be energetically a less costly process.
  来自Nature
• Most elderly people find the retrieval of names...difficult.
  来自A. Storr
• They use near-scale mockup vehicles and conduct off-loading, retrieval and survival missions.
  来自VOA