Ключевые слова: book, bored, children, class, college, cyberspace, deadline, depressed, desk, despair, education, exam, exhausted, fatigue, frustrated, hard, homework, indoor, laptop, lazy, learning, lesson, negative, notebook, online, people, person, problem, pupil, reading, research, sad, school, serious, sitting, sleep, sleepy, stress, stressed, student, study, teenage, textbook, thinking, tired, unhappy, university, upset, virtual, work,