Duolingo, mem-referenco, 1
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Die Sprachlernanwendung Duolingo verwendet einen ihrer eigenen Dialogsätze („Ihre Antwort ist richtig“) als Kursmaterial.
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DuolingoDuolingo je bezplatná platforma pro výuku jazyků matematiky a hudby. Spuštěna byla oficiálně 19. června 2012. Jejím hlavním tvůrcem je Luis von Ahn, který vytvořil mimo jiné službu reCAPTCHA. .. pokračovat ve čtení