Ключевые слова: achievement, adult, african, asian, beautiful, black, blackboard, board, business, businesswoman, chalk, chalkboard, chart, cheerful, cogwheel, college, data, diagram, drawing, education, engineering, female, gesture, graph, growth, happy, industrial, investment, lady, leadership, learn, lesson, line, marketing, mechanism, model, ok, okay, people, performance, pretty, rise, sales, smile, study, success, up, woman, work, young,