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印尼籍少女Melati在過去六年一直致力於解決印尼日益嚴重的塑膠污染問題。她如世界各地的年青人一樣，一心要為人權、氣候、言論自由、社會公義、基本教育和温飽而鬥爭。Melati穿梭各國，希望重新認識她的世代。在一切趨向絕望的時代，年輕人欲教曉我們如何活下去，以及身為人類的我們該如何處世。。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 ...。