waiting line problem

例句：

1. 1. The long waiting line atthe airport was frustrating for many travelers.
   机场长长的等待队伍让许多旅客感到沮丧。
2. 2.The company's poor service has beena major waiting line problem in recent years.
   该公司的服务不佳是近年来的一个主要排队问题。
3. 3. The new policy has resolved the waitingline problem of last year's event.
   新政策解决了去年活动的排队问题。