Ключевые слова: academic, asleep, assignment, book, bookcase, books, bookshelf, bookstore, class, classroom, college, education, educational, exam, exhausted, fatigue, homework, information, knowledge, learning, library, man, nap, napping, preparation, preparing, project, public, read, reading, research, revising, revision, school, science, searching, shelf, sleep, sleeping, sleepy, store, student, study, studying, teenager, textbook, textbooks, tired, university, working,