In this world, exchange partners do not keep their end of the bargain because it is the right thing to do, but only because it is to their advantage to do so.

这现实的世界里，交易伙伴不会坚守承诺，因为这不仅是因为他们这样做对他们自己有利，而且是因为他们这样做是正确的。

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The system allows a network of robot soldiers to quickly collect and exchange information and then to bargain with each other to determine the best course of action and execute it.

这一系统可以让机器人士兵快速的搜集信息，然后对其进行处理加工，经过它们互相交流这后拟出最佳行动方案，再去执行。

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That threatens the old bargain, in which over-qualified graduates tolerated low salaries in exchange for interesting work, and a lifestyle abroad of colonial ease.

这就可能出现那种古老交易的危险，即那些高资历者忍受较低的薪水，以换取他们自己感兴趣的工作以及殖民地的某种安逸的海外生活方式。

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On Wednesday, District Attorney Sherry Caloia said Bebb-Jones had made a plea bargain, admitting murder in the second degree in exchange for a sentence of no more than 20 years.

BBC: British gambler Marcus Bebb-Jones jailed for US killing

The case involved a gang rape in the state of Georgia, in which one of the rapists testified against three other suspects in exchange for a lighter sentence, as part of a plea bargain.

ECONOMIST: Forensic science

Unless the official nuclear powers take steps to uphold their side of the NPT bargain that obliges them to work towards abolishing their nukes in exchange for keeping others from seeking the bomb, this opportunity could be lost.

ECONOMIST: Getting to zero