with one's nose in the air

• with one's nose in the air: つんと鼻を上げて

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• Hermione marched away with her nose in the air.
  （ハーマイオニーはつんと鼻を上げて行ってしまった。）
  J. K. Rawling, Harry Potter and the Philosopher's Stone, Bloomsbury, p. 123