两者之间的合作基于一份书面协定。在这份协定上，有臭名昭著的苏联秘密警察头子(NKVD，苏联内务人民委员会)贝利亚完整的签名，片中有过展示。

Cooperation was based on a written agreement-complete with the signature of Lavrenty Beria, head of the notorious nkvd-which is shown in the film.

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两者之间正上演一场秘密的冷战吗？

Is there a secret cold war between marrieds and singles?

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