As with other modes of transportation and other industries, including sports and entertainment, advertising revenue helps offset the high costs faced by the airline industry.
与其他运输方式和其他行业，包括体育和娱乐，广告收入帮助抵消了航空业所面临的高成本。
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Linguistics, Education, Sociology, Literature, Advertising, Hospitality, Transportation, Communication, and Geography.