Upon receipt form the sellers lf the advice as to the time and quantity expected ready for shipment, an irrevocable Letter Of Credit in favour of the sellers.是什么意思_Upon receipt form the sellers lf the advice as to the time and quantity expected ready for shipment, an irrevocable Letter Of Credit in favour of the sellers.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句