Ключевые слова: academic, adult, background, books, boy, caucasian, class, college, concentration, course, deadline, desk, difficulty, education, exam, examination, exhausted, graduate, home, homework, indoors, knowledge, learning, lecture, leisure, lesson, library, lifestyle, male, man, napping, person, preparing, research, room, scholarship, school, sleeping, smart, stress, student, studying, success, table, test, tired, university, wisdom, work, young,