1. 走道   lunch   money exchange   excess   aisle   Hint Half-n-half Clue   2. 航空器   vegetarian   aircraft   currency   excess   Half-n-half Clue   3. 行李架   steward   luggage rack   cuisine   dinner   Half-n-half Clue   4. 行李极限   elevator   reclaim   baggage limit   dinner   Half-n-half Clue   5. 烹调   cuisine   pastry shop   money exchange   customs clearance   Half-n-half Clue   6. 电梯   money exchange   weigh   elevator   steward   Half-n-half Clue   7. 早餐   customs officer   lunch   pastry shop   breakfast   Half-n-half Clue