give something over to something/someone        
phrasal verb with give verb uk/ɡɪv/ us/ɡɪv/ gave | given
 把…给(某人)使用;将…交托给(某人)
to give another person the use of something, or the responsibility for something or someone
  We've given the attic over to the children. 我们已经把阁楼让给孩子们了。