互通有无

hù tōng yǒu wú

Rare

Definitions

1. (idiom) mutual exchange of assistance; to benefit from each other's strengths and make up each other's shortfalls; to reciprocate with material assistance; to scratch each other's back

to have; there is

not to have

classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)

mutual

to intercommunicate

to have or have not