Generally speaking, they come from school. Schools are places to train talents. They enter teachers from students and become teachers in schools. Some college students are generally from school. Schools are places to train talents. They enter teachers from students and become teachers in schools. Some college students are generally from school. Schools are places to train talents. They enter teachers from students and become teachers in schools. Some college students usually come from schools, which are places to train talents. They go from students to teachers and become school teachers. Some college students usually come from schools, which are places to train talents. They went from students to teachers, became teachers in schools, and some college students came out.