英文關鍵字
1080p
4k
black
boy
caucasian
child
childhood
class
cute
definition
development
early
education
elementary
female
girl
group
hd
high
highdef
leaning
learn
learning
library
male
medium
mixedrace
of
people
pres
pupil
school
sitting
standing
英文關鍵字
1080p
4k
black
boy
caucasian
child
childhood
class
cute
definition
development
early
education
elementary
female
girl
group
hd
high
highdef
leaning
learn
learning
library
male
medium
mixedrace
of
people
pres
pupil
school
sitting
standing