Ключевые слова: adult, book, business, busy, caucasian, college, computer, concentrated, concentration, dark, darkness, deadline, desk, education, evening, exam, home, homework, indoor, internet, laptop, late, learning, lifestyle, male, man, night, office, online, overworked, person, preparing, reading, room, screen, serious, sitting, student, study, studying, technology, textbook, thoughtful, tired, university, work, working, writing, young,