Ключевые слова: academic, audience, auditorium, campus life, class, classmates, classroom, college, community, concentration, education, focus, happy, high school, higher education, international students, knowledge, learning, lecture, lesson, listening, looking, male, multi ethnic, people, person, portrait, professor, school, schoolchild, seminar, sitting, smile, student, studying, studying abroad, teacher, togetherness, university, various, workshop, young adult, youth,