Ключевые слова: adolescent, app, concentration, contact, conversation, cute, education, exams, eyeglasses, female, game, game app, girl, girls, glasses, high school, high school students, internet, japanese, learning, lifestyle, message, natural light, network, online, outdoors, refreshing, research, ribbons, school girls, smartphone, sns, student, students, study, teenager, teens, underage, uniforms, woman, women, young, youth,