收發

to receive and send / to receive and transmit

to receive / to accept / to collect / to put away / to restrain / to stop / in care of (used on address line after name)

to send out / to show (one's feeling) / to issue / to develop / to make a bundle of money / classifier for gunshots (rounds)

mail room / radio room (i.e. reception and transmission)

transponder / electronic device that responds to a radio code

transceiver / radio frequency receiver, broadcaster or relay