Young male chemist sitting at the desk in the classroom
Palabras clave
young,
chemist,
laboratory,
laboratory,
chemistry,
chemical,
experiment,
experimenting,
test,
testing,
scientific,
science,
class,
classroom,
desk,
sitting,
unsuccessful,
unhappy,
sleepy,
exhausted,
fatigue,
sad,
stressed,
thinking,
concerned,
cephalalgia,
analysing,
doctor,
research,
scientist,
analysis,
sample,
examining,
health care,
researcher,
discovery,
solution,
pharmacy,
medicine,
man,
tube,
tubing,
glasses,
liquid,
substance,
tube,
biochemical,
virus,
student
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