Quadrupling the gross national product will be an achievement of great significance. It will mean an annual GNP of US $1 trillion by the year 2000.是什么意思_Quadrupling the gross national product will be an achievement of great significance. It will mean an annual GNP of US $1 trillion by the year 2000.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句