Ключевые слова: back, backpack, blooming, business, chart, class, contact, copy, cover, data, desk, diploma, disc, educate, education, element, equipment, face, furniture, ground, growth, human, icon, industrial, instrument, knowledge, learn, learning, manager, mobile, phone, pupil, quaver, ruler, schoolboy, science, service, set, statistic, symbol, teach, teaching, text, work,