They also actively carried out substantial cooperation in various fields while sticking to the principles of mutual benefit and reciprocity.

坚持互惠互利，积极开展在各领域的务实合作。

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Based on wave acoustics, the low frequency sound field is analyzed in this paper, and reciprocity is verified both theoretically and experimentally.

文章根据波动声学的观点对房间内的低频段声场做分析，理论和实验都验证了这个结论。

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The techniques of liking and reciprocity mentioned above both clearly play on our desire for affiliation, as do many other techniques of persuasion and influence.

上文所提到的“喜爱”和“互惠”的技巧，无疑是在“被喜欢”这个需求上做文章，其他很多说服和影响技巧也是如此。

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A sense of reciprocity is establishedbetween the tow truck and the person who helps the tow truck out of being stuck -a fine sense of reciprocity, so the expectation is that there will be a moral.

在托运车和把托运车从困境中解救出来的人之间,建立起了一个互惠主义关系,相互帮助，一个很好的感觉，所以期待是这其中会有一个寓意。

耶鲁公开课 - 文学理论导论课程节选

The moral is that reciprocity is friendship and so good, all to the good, but as I say there's a moment of suspense in the expectation at the point in the text when we expect a moral but we don't know what the moral is going to be.

寓意是，相互关爱就是友谊，它如此美好，对双方都有好处，但正如我所说，也有那么一刻，期望面临悬念,在当我们期待一个寓意,却不知道那个寓意将是什么的时候。

耶鲁公开课 - 文学理论导论课程节选

She learned the hard way that making concessions without proper planning and reciprocity is like confessing your weaknesses to a wolf.

FORBES: Connect

According to new research, dirty money leads to selfish, greedy, exploitative behaviours, while clean cash promotes fairness and reciprocity.

FORBES: Dirty Cash, Dirty Minds: The Psychological Consequences Of Filthy Lucre

This can be achieved through an urgent work of restoring the spirit of partnership and reciprocity and to avoid unilateral steps.

CNN: Transcript of Mahmoud Abbas' speech at Egypt summit