Ключевые слова: adult, alarm, barrier, building, city, concept, contemporary, copyspace, coronavirus, covid19, danger, dangerous, document, environment, epidemic, feet, flu, friends, gesture, greeting, health, hello, home, identification, identity, industrial, industry, infection, looking, male, man, mask, pandemic, people, person, pollution, prevention, professional, protection, protective, protective mask, quarantine, ritual, safety, service, situation, stand, standing, street, toxic,