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стать полной неожиданностью stresses
Игорь Миг	come out of the blue (Divorce – it didn't come out of the blue.)
idiom.	come out of the blue (The decision to cancel the contract came out of the blue. / His request for leave came out of the blue. ART Vancouver)
стало полной неожиданностью
idiom.	came out of the blue (The decision to cancel the contract came out of the blue. ART Vancouver)