Ключевые слова: blank, business, closeup, communication, connection, copy, correspondence, delivering, design, earn, element, empty, envelope, free, free copy, glue, horizontal, isolated, letter, light, mail, message, nobody, object, office, open, package, paper, post, postal, receipt, receiver, retire, retirement, salary, send, sender, shadow, single, space, stationery, symbol, tab, wage, white, writing,