line delay

例句：

1. 1.The line delay caused us to miss our flight.
   线路延迟导致我们错过了航班。
2. 2. The engineers were able to reduce the line delay by optimizing the traffic flow.
   工程师们通过优化交通流量来减少线路延迟。
3. 3.The line delay was a major cause of frustration for passengers.
   线路延迟是乘客感到沮丧的主要原因。