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互通有无 hùtōngyǒuwú
busin.	supplying each other's wants; each making up what the other lacks; help supply each other's needs; make up for each other's shortages; mutual exchange of needed product; mutually supplying each other's needs
commer.	help supply each other's need
econ.	mutual-exchange of needed products; supply each other's wants
interntl.trade.	exchange of needed goods; mutual exchange of needed products; supplying each other’s wants

互通有无 : 5 phrases in 4 subjects

Commerce	1
Economy	1
Finances	1
International trade	2