基本解釋輸入為先的對(duì)開(kāi)信用證詞組短語(yǔ)短語(yǔ)back -to- credit import first [金融]輸入方先開(kāi)的對(duì)開(kāi)信用證to back credit import first 輸入為先的對(duì)開(kāi)信用證back to back credit import first更多詞組