名词封缄明信片，简便邮简
1. 封缄明信片：letter-perfect 无讹的 | lettercard 封缄明信片 | lettercard 简便邮简
2. 简便邮简：lettercard 封缄明信片 | lettercard 简便邮简 | lettercard 简便邮简
3. 明信片纸：letter-presspaper 凸版印刷纸 | lettercard 明信片纸 | lettercopyingpaper 拷贝信纸
noun
1. a postcard that folds so the message is inside