Ключевые слова: 20s, academic, adult, casual, classroom, college, computer, content, copyspace, desktop, education, educational, ethnic, ethnicity, exam, female, happiness, happy, indoors, inside, interior, internet, knowledge, learning, library, lifestyle, looking, one, online, people, person, portrait, positive, positivity, preparation, research, school, sitting, smile, smiling, student, students, study, studying, technology, university, woman, women, young, youth,