Ключевые слова: 30s, adult, authentic, board, campus, candid, casual, caucasian, class, classroom, college, confident, content, copyspace, education, enjoying, ethnic, exam, female, focus, glass, glasses, hand, happy, holding, idea, inside, learning, lecture, lifestyle, looking, modern, natural, note, people, person, professor, real, school, screen, showing, sitting, smiling, studying, teacher, test, university, woman, writing, young,