Ключевые слова: american, analysis, background, bank, banknote, bill, business, cash, check, chemical, chemistry, closeup, commerce, concept, conceptual, crisis, currency, dollar, economic, experiment, finance, financial, glass, glass material, glove, hand, health, holding, human, hundred, indoors, lab, laboratory, latex, medical, medicine, monetary, money, pathology, rack, recession, research, risk, scientific, scientist, symbol, test, tube, usa, white,