Ключевые слова: academic, adult, book, business, casual, class, classroom, college, conference, course, desk, education, empty, event, female, group, hands, indoors, information, knowledge, learning, lecture, lesson, lifestyle, looking, male, man, meeting, notebook, notes, paper, pen, people, row, school, seminar, sitting, startup, student, students, study, studying, table, taking, team, test, training, university, writing, young,