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其实,个别种类的情报密码之所以难以破译,关键就在于密码本身的形式完全出人意料!例如这种——用长篇小说当密码,听说过吗?
In fact, the reason why some kinds of intelligence passwords are difficult to decipher, the key lies in the form of the password itself completely unexpected! Such as this - with the novel as a password, have heard of it?