收票员

例句：

1. 1. The ticket collectorwas busy checking tickets at the entrance.
   检票员在入口处忙着检查门票。
2. 2. Theticket collector was responsible for selling and collectingtickets.
   检票员负责售票和收集门票。
3. 3. The ticket collector was in charge ofensuring that all tickets were valid.
   检票员负责确保所有门票都是有效的。