Good teaching.
Nowadays, many people regard teaching as a gilded place, which will make their resumes look good and achieve their goals. As everyone knows, children in mountainous areas saw the hope brought by the outside world because of their participation, and after a few months, they left again, bringing them despair. The good thing is that they can open up the knowledge of children in mountainous areas, let them know the vastness of the world and set up lofty ideals.