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Laughing science teacher holding up a test tube
Keywords:
balding
men
education
teaching
studying
adult
adults only
working
indoors
one man only
caucasian ethnicity
only men
teacher
blackboard
desk
copy space
smiling
mature adult
happiness
science
looking at camera
student
sitting
classroom
males
expertise
cheerful
activity
portrait
professor
occupation
learning
one person
drawing
teacher test
over reaction
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