英文關鍵字
11
20s
boy
caucasian
child
children
class
classroom
computer
desk
digital
down
education
elementary
encouraging
female
helping
indoors
learning
lesson
literacy
lock
male
medium
old
people
person
primary
pupil
school
schoolchildren
shot
sitting
student
table
tablet
teacher
teaching
together
twenties
two
uniform
woman
women
working
year