Ключевые слова: adults, biochemistry, chemical, chemistry, colleagues, communication, computer, connection, dangerous, digital device, electronic, epidemic, experiment, female, gadget, gesture, gesturing, job, laptop, male, man, microbiology, nature, notebook, outdoors, outside, overalls, people, point, polution, profession, professional occupation, protection, protective masks, protective suits, researchers, safety, science, scientific, scientists, sewerage, sign, symbol, together, water, wireless, woman, work, working,