classes: lecturer. Teachers are cheerful, sociable, enthusiastic, dedicated teaching, often remind lazy students, often take a break from school to class. curriculum. Teachers are cheerful, sociable, enthusiastic, dedicated teaching, often remind lazy students, often take a break from school to class. facility. Teachers are cheerful, sociable, enthusiastic, dedicated teaching, often remind lazy students, often take a break from school to class. general. Teachers are cheerful, sociable, enthusiastic, dedicated teaching, often remind lazy students, often take a break from school to class.