Seven teenagers. Five months. Twenty feet underground. No exit. The gripping story of a handful of high [ZiYuantun.Com]school kids trapped in a wealthy Philadelphia family's backyard bunker. 译文(2): 七个青少{资源屯-ziyuantun.com}。五个月。地下20英尺。没有出口。这是一个扣人心弦的故事，一群高中生被困在费城一个富裕家庭后院的地堡里。
