他认为，自然选择对于那些曾经是利他主义者的人是有利的，因为我们的祖先生活在小而密集的群体中，人们的利他主义可以指望得到相互间的利益互惠。
He argues that natural selection favored humans who were altruistic because in the small, close-knit groups in which our ancestors lived, altruists could expect reciprocity.
为了您开始运动时，一定要先了解相互的差异和非互惠的联系。
In order to begin your campaign, you must first understand the difference between reciprocal and non-reciprocal links.
整个建筑充分体现了城市和乡村相互依存、互惠共生的关系，强调人类、自然与科技的完美平衡。
The building shows the interdependent relationship between city and countryside and emphasizes a perfect equilibrium among human, nature and high-tech.
我们两国的合作中，我们希望以相互尊重、互惠互利的原则行事，以尊严与公正共存的原则行事。
In our cooperation, we wish to act according to the principle of mutual respect and mutual benefit and to the principal of both dignity and fairness.
即以人类学所倡导的文化相对主义为准则，在相互尊重、平等互惠、谋求理解的原则指导下，进行开放式的国际理解教育。
Under the principle of cultural relativity and the direction of mutual respect, equal benefit and understanding, an open-style international education is to be undertaken.
公司本着相互促进、优势互补、互惠互利的原则，愿同更多的客户进行广阔的交流与合作。
On the principle of mutual promotion, complementary advantage, mutual benefit, our company is willing to communicate and cooperate with more customers.
互惠互利，相互理解，为客户提供优良的服务是我们的商业宗旨，长期良好的商业关系是我们的商业目标。
Mutual benefit, mutual understanding and good serves to the customers are the principle of our business, long term and good business relationship is the target of our business.
互惠互利，相互理解，为客户提供优良的服务是我们的商业宗旨，长期良好的商业关系是我们的商业目标。
Mutual benefit, mutual understanding and good serves to the customers are the principle of our business, long term and good business relationship is the target of our business.
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