qizidemimi
11 年前
搜影视
噩运降临之前， 李丰独自出门。 儿子和丈夫不懂， 她只是想一个人走走。生活在一座岛上， 陆地的终点并不遥远。。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 our lives in such a defenseless state? And what's at stake if we sleep poorly? The functions of sleep have long been something of a mystery. But now scientists are peering deep into the brain to see what happens while we snooze. One ...。Six girls living along the Amazon, Nile, Mississippi, Danube, Ganges, and Yangtze rivers learn about water and sustainability and use their newfound education to protect their communities and homes.。
