求翻译：The Harry Potter novels revolve around Harry Potter, an orphan who discovers that he is a wizard. Wizard ability is inborn, but children are sent to wizarding school to learn the magical skills necessary to succeed in the wizarding world. Harry is invited to attend the boarding school called Hogwarts, School of Witchcraft and Wizardry. Each book chronicles one year in Harry's life, and most of the events happen at Hogwarts. As he struggles through adolescence, Harry learns to overcome many magical, social and emotional hurdles.是什么意思？

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