有无

to have or have not / surplus and shortfall / tangible and intangible / corporeal and incorporeal

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

not to have / no / none / not / to lack / un- / -less

(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

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

mutual exchange of assistance (idiom) / to reciprocate with material assistance