Ключевые слова: adolescence, asleep, books, boy, caucasian, child, childhood, class, classroom, cute, desk, doze, education, exhausted, face, fatigued, heap, indoor, isolated, jaded, kid, lassitude, lesson, lie, little, male, one, overwork, overworked, person, pile, pupil, school, schoolboy, sit, sleep, sleeper, sleepy, student, table, teen, teenager, textbook, tired, weariness, white, young, youth,