The International Air Transport Association (IATA) currently is predicting a 3% year over year decline in passenger traffic and a 5% drop in cargo traffic for 2009.是什么意思_The International Air Transport Association (IATA) currently is predicting a 3% year over year decline in passenger traffic and a 5% drop in cargo traffic for 2009.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句