作为一个通信老司机，我便兴致勃勃地给她解释基站的作用。 没想到，女儿突然问了我一个问题：“爸爸，那个基站的外壳是什么材料做的呢？风吹日晒，不会坏吗？” 这个问题，一时让我有些语塞。是呀，一直以来，我关注的都是基站的架构和原理，可是 ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.