1. Doctors: Doctors need to be ready to provide medical care to their patients at any time, day or night, weekday or holiday. Doctors need to maintain a high degree of professionalism and responsibility and be ready to respond to all kinds of medical emergencies.
2, firefighters: firefighters are professionals responsible for fire fighting and rescue, and need to be ready to respond to a variety of fires and other emergencies. Firefighters need to have professional skills and equipment, as well as good teamwork and psychological quality.