为什么现代人类从原始非洲向其他地区的迁移发生在约5000年前？

Why did modern humanity expand past Africa about 50,000 years ago?

youdao

除此之外，呼喊与回应式唱法，以及吟诵原始非洲民谣，都能帮助建立节奏与旋律的基础，这也能强化音乐发育。

In addition, the call and response singing and chanting of authentic African folksongs helps to build the foundations, such as rhythm and melody, hat support musical development.

youdao

有一天晚上，一群公牛聚集在我所在的池塘对面，在十月的月光下，在一片宁静原始的非洲草原……

One evening a herd of bulls gathered across the water from me, rising above their reflections under an October moon, in a primeval scene of ancient Africa...

youdao

Now, there were other localized slave societies, surely; certainly within Africa, to a certain degree even before Europeans arrived and certainly after Europeans arrived, particularly after the regularization of the Atlantic slave trade.

除此之外当然还有很多小区域奴隶社会,非洲当然有,甚至是原始欧洲,欧洲现代人到来后当然更多,特别是在,大西洋奴隶贸易合法化之后

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