Unit 5 Flying In and Out
Part I Getting Ready
1. baggage: the cases, bags, boxes, etc. of a traveler2. board: get into a ship or an aircraft3. airline: a business that runs a regular service for carrying passengers and goods by air4. delay: move to a later time5. check in: report one's arrival at an airport6. round trip: a journey to a place and back again

7. ticketing deadline: a date or time before which a ticket must be bought8. in-flight: happening or provided during a trip by plane9. cabi ...