Ключевые слова: a, abc, abc letters, alphabet, alphabet learning set, alphabetical, alphabets, b, backdrop, background, blurred, board, c, child, childhood, children, class, classroom, college, colorful, concept, copy space, education, empty space, english, isolated, kid, kindergarten, language, learning, lesson, letter, letters, mix, pattern, preschool, primary, random, school, sign, simple, spelling, student, symbol, tabs, teach, text, white, word, write,