academic
adult
blackboard
calculate
chalkboard
classroom
college
confused
difficulty
disappointed
education
engineering
explaining
forget
formula
frustrated
genius
intelligent
knowledge
man
math
mathematician
mathematics
maths
papers
paperwork
presentation
problem
professor
research
researcher
scholar
science
scientific
scientist
seminar
smart
solution
standing
student
studying
teacher
teaching
theory
university
young
定額
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