在山谷间，阳光透过云层，青翠的树木仿佛在悄然崛起。我把我六年级妹妹做了一节课

　　In the shady campgrounds of Yosemite valley, climbers carved out a counterculture lifestyle of dumpster-diving and wild parties that clashed with the conservative values of the National Park Service. And up on the walls, generation after generation has pushed the limits of climbing, vying amongst each other for supremacy on Yosemite's cliffs. "Valley Uprising" is the riveting, ... (展开全部)