Ключевые слова: agreement, aid, assistance, barter, black, business, care, cash, charity, coin, coinage, coins, commerce, contribution, currency, dark, dark background, deal, donation, economic, economy, exchange, finance, financial, finger, generosity, gesture, giving, giving hand, hands, holding, human, investment, metal, money, payment, physical currency, receiving, receiving hand, skin, support, trade, transaction, transfer,