algebra
amazed
amazement
astonished
book
calculate
child
complex
copybook
creativity
education
educational
emotion
emotional
exam
examination
exhausted
expression
female
formula
girl
idea
inspiration
intelligent
kid
knowledge
learn
learning
lesson
math
mathematic
mind
observe
person
reaction
revelation
scared
school
schoolchild
shock
shocked
stress
student
study
surprise
think
watch
wonder
worried
yellow
定額
Young student is with shocked expression and think about complex exercises. Yellow backgroundの素材 [FY310141782173]
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