Ключевые слова: back to school, backpack, beautiful, cheerful, child, childhood, college, education, educational, elementary, emotions, girl, grade, happy, high school, kid, knowledge, knowledge day, long hair, making step, nerd, preschool, preschooler, preteen, primary, rucksack, school, school bag, school time, schoolbag, schoolgirl, schooling, september, september 1, smile, student, teen, teenage, teenager, teeny, tween, university, yellow background,