契约观念是辩诉交易制度的文化基础；

The concept of contract is the cultural basis for the system of plea bargaining.

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契约观念在古希腊智者时代就已经出现了。

The notion of contract existed early in ancient Greece.

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宋代是中国历史上的一个转折时期，这一时期民众的法律观念有三个方面特别值得注意，即诉讼观念、契约观念和鬼神赏罚观念。

The Song Dynasty is a turning time in Chinese history, during which the common people's ideas about lawsuits, contracts and the ghosts and gods' reward and punishment deserve our careful study.

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