求《绿野仙踪》的主要内容翻译

Dorothy Gale who lives on a Kansas farm with her Aunt Em and Uncle Henry, but dreams of a better place "somewhere over the rainbow." After being struck unconscious during a tornado by a window which has come loose from its frame, Dorothy dreams that she, her dog Toto, and the farmhouse are transported to the magical Land of Oz. There, the Good Witch of the North, Glinda, advises Dorothy to follow the yellow brick road to the Emerald City and meet the Wizard of Oz, who can return her to Kansas. During her journey, she meets a Scarecrow, a Tin Man and a Cowardly Lion who join her, hoping to receive what they lack themselves (a brain, a heart, and courage, respectively). All of this is done while also trying to avoid the Wicked Witch of the West and her attempt to get her sister's ruby slippers from Dorothy, who received them from Glinda.