來自LingQ圖書館的示例
- of tickets: first class, business class, and economy class. Most
- more places more often. Business class is more expensive, with
- within the same country. Business class or first class is
- you an upgrade to business class, so that you have
- a working TV screen. Business class? Let's go! Follow
- and get upgraded to business class, like I did! Now
- Upgrade to Business Class We were in the
- you all upgraded to business class on a new flight
- us had ever flown business class before. We had an
- the first class or business class line and that makes
