1. 银行   telephone   luggage locker   bank   immigration   Hint Half-n-half Clue   2. 容限   immigration   airplane   allowance   terminal   Half-n-half Clue   3. 单程票   ticket   gate   luggage locker   one-way ticket   Half-n-half Clue   4. 终端   ticket   terminal   airline   immigration   Half-n-half Clue   5. 外币，外汇   seat belt   foreign currency, foreign exchange   return ticket, round-trip ticket   visa   Half-n-half Clue   6. 靠窗座位   reservation   domestic   window seat   cancellation   Half-n-half Clue   7. 位子   reservation   toilet   seat   telephone   Half-n-half Clue