Ключевые слова: analysis, balance, bank, blackboard, chalkboard, character, choice, commerce, compare, comparison, concept, contrast, cost, customer, difference, dollar, finance, idea, investment, letter, lifestyle, loan, marker, market, measure, metaphor, money, presentation, price, problem, product, quality, relation, relationship, satisfaction, scales, seesaw, sign, solution, symbol, text, theory, value, white, word, worth,