简介: NOVA: Mysteries of Sleep Like virtually every other animal, humans need sleep to survive. But why? What do we gain from spending nearly a third of o
简介: 表面上Miley Stewart(麦莉·赛勒斯 Miley Cyrus 饰)是一个普通女孩,但在平凡的日常生活以外,她还有一个秘密身份——偶像少女歌星Hannah Montana。知道她身份的只有老爸兼经纪人Robby(比利·雷·赛勒斯 Billy Ray Cyrus 饰)和哥哥Jackson(