Migration narrows the gap in human capital among the cities, especially the gap between Shanghai and the other 15 cities of the Yangtze River Delta.是什么意思_Migration narrows the gap in human capital among the cities, especially the gap between Shanghai and the other 15 cities of the Yangtze River Delta.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句