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официальная вежливость (The Trump Administration has the right idea, even if the President’s words lack the usual diplomatic politesse. (WSJ, 9 Aug. 2017)); показная вежливость; официальная учтивость; показная учтивость (With flattery and French politesse, President Emmanuel Macron delicately maneuvered around Trump, partly by playing to the President’s ego. (The New Yorker, 27 Aug. 2019)) | |||
политес (merriam-webster.com) |