mailbag
n. 邮袋
sp. =postbag(英).
近义词：postbag，mailpouch，sack，bag，satchel，shoulderbag，correspondence，feedback，mail，letters，communications，post，
英英释义
Noun
- pouch used in the shipment of mail
- letter carrier's shoulder bag;
"in Britain they call a mailbag a postbag"