I admire these professions:
Doctor: The hospital is an irritable place, patients can leave when they are discharged, they always have to be there.
Conductor: Passengers can get off the train when they arrive at the station, they always have to stay on the train, although there is a break, but it is still admirable.
Teacher: Students can leave the school as a depressing place after graduation, they always have to stay there, and they have to send away batches of students, which is too uncomfortable.
Front Desk Worker: When someone else can leave after doing business, they have to stay there all the time.
Although it is their job, after a long time, they don't feel anything, but they still admire it!