Ключевые слова: app, application, background, business, cellphone, classroom, closeup, communication, concept, copyspace, device, digital, display, education, electronic, female, finger, gadget, google, google classroom, hand, hold, holding, information, internet, lesson, lifestyle, media, mobile, network, people, person, phone, school, screen, smartphone, social, student, study, technology, telephone, touch, touchscreen, using, white, wireless, woman, young,