Ключевые слова: aang, abstract, abugida, alphabet, ang, art, backdrop, background, banner, basin, black, blackboard, board, chalk, chalkboard, class, classroom, communication, concept, consonant, education, english, eraser, idea, learn, lesson, letter, o, or, school, sign, sketch, student, symbols, teacher, text, thai, thailand, translation, university, wipe, word, words, write, writing,