礼尚往来

lit. proper behavior is based on reciprocity (idiom) / fig. to return politeness for politeness

surname Li / abbr. for 禮記|礼记[Li3 ji4], Classic of Rites

gift / rite / ceremony / CL:份[fen4] / propriety / etiquette / courtesy

still / yet / to value / to esteem

to go (in a direction) / to / towards / (of a train) bound for / past / previous

old variant of 往[wang3]

dealings / contacts / to go back and forth

to come / to arrive / to come round / ever since / next