Hànshā Hángkōng shì Déguó zuì dà de hángkōng gōngsī.
Lufthansa is Germany's largest airline.
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汉莎 transliterates the 'Hansa' part of Lufthansa, which is itself derived from the medieval Hanseatic League (汉萨同盟 / 汉莎同盟). Chinese sticks with 汉莎 for the airline brand even though the historical league is more often spelled 汉萨.