treble

But the KGB, in turn, was deceiving the Englishmen, because it really believed that they were playing a treble game and were all traitors to the Communist cause.

但是克格勃实际上以欺骗回报了英国人，因为他们认为，这几个人在玩三重游戏，实际上是共产主义事业的叛徒。