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A chemistry teacher consulting a textbook in his classroom
Keywords:
men
education
teaching
studying
adult
book
working
wisdom
indoors
caucasian ethnicity
teacher
blackboard
desk
intelligence
concentration
serious
standing
science
looking at camera
student
sitting
classroom
research
lab coat
males
expertise
reading
portrait
professor
learning
one person
laboratory desk
chemistry blackboard
chemistry table
chemistry textbook
scientific writing
chemistry class
chemistry teacher
reading writing
senior high school
lab coat teacher
professor portrait
teacher lab
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