postbag
n.邮袋
难易程度:
postbag为短语/超纲词汇
postbag
n BrE
[singular]
all the letters received by an important person, television programme etc on a particular occasion
We've had an enormous postbag on the recent programme changes.
[C]
a bag for carrying letters, used by the person who delivers them
American Equivalent: mailbag