定义

• "I'm pleased to tell you that your reservation for International Luxury Airways flight 339 non-stop from San Francisco to Jakarta has been confirmed for next Friday, July 30th, at 10:00 PM. Your ticket is in business class, as you requested."
• "Polly : It has recently come to my attention that you charged a business class plane ticket from San Francisco to Jakarta to your expense account at Delavigne."
• "It's a business trip, and I am a businessman, so I decided to go business class."
• "Business class airfare to Hong Kong (flying 05/04)"
• "As you know, the flight to Jakarta is quite long, and the business class passengers will be shown the greatest films of Kubrick, Fellini and Truffaut."
• "Polly : Mr. Connors, if you still wish to travel in business class, the extra cost will be deducted from your next check."
• "As you know, the flight to Jakarta is quite long, and the first and business class passengers will be shown the greatest films of Kubrick, Fellini and Truffaut."
• "Also, the stewardesses will perform a native Indonesian dance for all business class passengers."
• "Business class includes free champagne, warm towels upon request, and shiatsu massages every three hours."
• "If you still feel like upgrading to first class or business class, then the money to pay for the upgrade will have to come out of your own pocket."