diplomatic bag
noun [ C usually singular ] uk/dɪp.ləˈmæt.ɪk ˌbæɡ/ us/dɪp.ləˈmæt̬.ɪk ˌbæɡ/ (also diplomatic pouch)
外交信袋，外交信件袋
a container in which letters are sent between diplomats without being examined by customs officials
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。