priority flag

例句：

1. 1. The company has implementeda new system to prioritize customerservice.
   该公司已经实施了一个新的系统，以优先处理客户服务。
2. 2. The priority flag onthe door indicates that someone is in distress.
   门上的优先标志表明有人处于危险之中。
3. 3. The priority flag was raised when theemergency meeting was called.
   紧急会议被召集时，优先标志被提升。