英文關鍵字
1080p
20s
adult
black
boy
caucasian
child
childhood
class
classroom
definition
desk
development
early
education
elementary
female
girl
group
hd
high
highdef
learn
learning
male
medium
mixedrace
of
people
pupil
school
sitting
woman
young
英文關鍵字
1080p
20s
adult
black
boy
caucasian
child
childhood
class
classroom
definition
desk
development
early
education
elementary
female
girl
group
hd
high
highdef
learn
learning
male
medium
mixedrace
of
people
pupil
school
sitting
woman
young