我学了中国的历史跨越三千半个年。

I learnt China's history spans three and half millennia.

youdao

考古学家在南非的一个古老洞穴中发现了一个油漆制作工作室。这个新的考古发现可能是人类文化和认知历史的最伟大的跨越之一。

Archeologists have discovered a paint production studio in an ancient South African cave a new archaeological find may signify one of the great leaps in human cultural and cognitive history.

youdao

对于这一贯穿于人类历史，跨越不同文化的反复行径，我们该做何解释呢？

What else could fully explain their constant recurrence throughout human history and across vastly different human cultures?

youdao