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dune (piaszczyste wzniesienie o asymetrycznych stokach, usypane przez wiatr; A low mound, ridge, bank, or hill of loose, windblown granular material (generally sand, sometimes volcanic ash), either bare or covered with vegetation, capable of movement from place but always retaining its characteristic shape); sand dune (piaszczyste wzniesienie o asymetrycznych stokach, usypane przez wiatr; występująca zwykle w strefie wybrzeży, również nad jeziorami i rzekami lub w regionach pustynnych; An accumulation of loose sand heaped up by the wind, commonly found along low-lying seashores above high-tide level, more rarely on the border of large lakes or river valleys, as well as in various desert regions, where there is abundant dry surface sand during some part of the year) |
