yǒu wú
to have or have not
surplus and shortfall
tangible and intangible
corporeal and incorporeal
hù tōng yǒu wú
mutual exchange of assistance (idiom)
to benefit from each other's strengths and make up each other's shortfalls
to reciprocate with material assistance
scratch each other's back
yǒu wú xiāng tōng
mutual exchange of assistance (idiom)
to reciprocate with material assistance