grab the seat
A. 选座
B. 让座
C. 排座
D. 霸座
值机柜台
A. check-in counters
B. security check channels
C. boarding gates
D. terminal buildings
安检通道
A. check-in counters
B. security check channels
C. boarding gates
D. terminal buildings
登机口
A. check-in counters
B. security check channels
C. boarding gates
D. terminal buildings