fish something out 
phrasal verb with fish verb uk/fɪʃ/ us/fɪʃ/
  informal      
 (从水中)拖出;(从包或口袋中)拿出,取出
to pull something out of water or take something out of a bag or pocket
  Police fished a body out of the river this morning. 今天早上,警方从河里打捞出一具尸体。 
 He fished out a coin from his pocket. 他从口袋里摸出一枚硬币。