Medium long of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, holding beaker with liquid
Contributor: pressmaster
ID : 528533000
Keywords
chemistry, experiment, demonstration, protection, speak, instructing, lecture, dropper, beaker, liquid, teacher, student, lesson, natural science, education, school, class, classroom, desk, biology, cognition, equipment, high school, sunlight, morning, study, girl, guy, man, talkRelated items
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