n.互惠，互助，互换

The act of reciprocity is the cornerstone of any healthy relationship.
互惠是任何健康关系的基础。
She showed reciprocity by inviting him to her birthday party.
她通过邀请他参加她的生日派对展示了互惠。
In business, reciprocity often leads to long-term partnerships.
在商业中，互惠常常导致长期的合作关系。
Reciprocity in friendships means giving and receiving support equally.
友谊中的互惠意味着平等的给予和接受支持。
The children learned about the importance of reciprocity during their cultural exchange program.
在文化交流项目中，孩子们了解到了互惠的重要性。
She returned his kindness with a thoughtful gift, demonstrating reciprocity.
她以一份贴心的礼物回报了他的善意，体现了互惠。
The law of reciprocity states that you should treat others as you would like to be treated.
互惠法则表明，你应该以你希望被对待的方式对待他人。
Their acts of reciprocity during tough times strengthened their bond.
在困难时期他们的互惠行为加深了他们之间的联系。
He showed reciprocity by helping his neighbor without expecting anything in return.
他主动帮助邻居而不求回报，体现了互惠精神。
In nature, many species exhibit reciprocal behaviors, such as birds sharing food.
在自然界中，许多物种表现出互惠行为，比如鸟类共享食物。