1. going by plane 坐飞机
2. Business Class 商务舱
3. First Class 头等舱
4. Economy Class / Coach 经济舱
5. check luggage 托运行李
6. carry-on luggage 手提行李
7. Boarding Pass 登机牌
8. window seat / aisle seat / middle seat 靠窗座位: 靠走廊座位,靠中间的座位
9. over-head compartment 头顶的行李箱
10. direct flight 直飞航班
11. lay-over 转机停留
12. delayed flight: canceled flight 晚点航班,取消航班
13. jet-lag 时差