But 40 percent of the population in the once-wealthy nation still lives below the poverty line, many of them in the crime-ridden industrial rust belt around Buenos Aires.是什么意思_But 40 percent of the population in the once-wealthy nation still lives below the poverty line, many of them in the crime-ridden industrial rust belt around Buenos Aires.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句