Ключевые слова: adult, beaker, beautiful, biology, bright, busy, chemical, chemist, chemistry, closeup, coat, cure, discovery, dna, doctor, education, experiment, expertise, girl, health, hospital, job, lab, laboratory, liquid, medical, medicine, microbiology, occupation, people, physician, pipette, portrait, professional, research, science, scientific, scientist, smiling, student, study, team, technology, test, tube, university, white, woman, work, young,