英文關鍵字
30s
african
american
black
boy
caucasian
class
classroom
collaborating
collaboration
college
computer
education
female
five
girl
group
helping
high
laptop
learning
lesson
lockdown
male
man
medium
men
motion
old
people
person
pupil
research
researching
school
secondary
shot
slow
stem
student
studying
teacher
teaching
teen
teenage
teenager
thirties
together
tutor
working
years