Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

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.

不少用家尝试向DeepSeek询问一些比较敏感的话题时，例如“六四”事件、台湾主权、西藏、新疆议题，都会出现类似的情况：无法回答、或是回答 ...