Past oppression probably counts for much of the persistence of black poverty: in 1967, according to the census, the average black person had an income that was just 54% of the average white one.是什么意思_Past oppression probably counts for much of the persistence of black poverty: in 1967, according to the census, the average black person had an income that was just 54% of the average white one.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句