Jiffy bag
noun [ C ] trademark uk/ˈdʒɪf.i ˌbæɡ/ us/ˈdʒɪf.i ˌbæɡ/
（用于邮寄易损物品的）厚层信封
a brand name for a thick envelope for protecting objects that are easily damaged when they are sent by post
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。