Ключевые слова: african, analysis, career, chemical, chemicals, child, children, class, clinic, crazy, doctor, education, excited, experiment, face, funny, future, girl, glass, glasses, head, health, hospital, insurance, kid, kids, knowledge, lab, laboratory, learning, lifestyle, medic, medical, medicine, person, personal, red, research, results, school, science, scientist, student, study, surprise, surprised, technology, test, young, youth,