slave trade
noun [ U ] uk/ˈsleɪv ˌtreɪd/ us/ˈsleɪv ˌtreɪd/
（尤指16至19世纪将非洲黑人贩运至北美的）奴隶贩卖
the buying and selling of slaves, especially of African people who were taken to North and South America from the 16th to the 19th century
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