It says the global economic doubter downturn has calls caused passenger to demand to fall by 5. 6% and has made the a big dent in cargo traffic.是什么意思_It says the global economic doubter downturn has calls caused passenger to demand to fall by 5. 6% and has made the a big dent in cargo traffic.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句