词语

礼尚往来在礼节上注重有来有往借指用对方对待自己的态度和方式去对待对方。例礼尚往来往而不来，非礼也；来而不往亦非礼也。——《礼记曲礼上》英courtesy demands reciprocity; deal with sb. as he deals with you; pay sb. back in his own coin;