gift-givingCOCA⁵³⁶¹⁰BNC¹⁰⁴⁵⁸⁴⁺⁶iWeb³³⁹⁴⁴Economist⁴¹³⁰³⁺² 基本例句 n.馈赠 This problem involves determining, for a group of gift-giving friends, how much more each person gives than they receive and vice versa for those that view gift-giving with cynicism. 这问题是要来确定一组相互送礼的朋友中，有多少付出大于回报的人或与之相对的那些只进不出的白眼狼。 cnblogs