There were certain localized slave societies in East Africa, out of Zanzibar by the eighteenth and nineteenth century.
8至19世纪的东非除了桑吉巴之外,都存在小范围的奴隶社会
So increasingly now, Africa, Middle East, all the way over to India and then to China, huge trade routes, huge investment routes.
趋势越来越明显,非洲,中东地区,一直往东到印度再到中国,一条巨大的商业渠道,巨大的投资线路。
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