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《恋爱播放列表》改编自韩国同名热门网剧，该剧从不同视角讲述了几对大学生情侣间的恋爱故事，故事以大学生间的恋爱为主线，每集探讨一个年轻人的恋爱话题，讲述几对年轻情侣在多种恋爱模式下的苦辣酸甜。。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 ...。