英文關鍵字
20s
30fps
african
american
and
black
board
boy
canon
caucasian
child
children
class
classroom
close
desk
education
elementary
ethnic
female
folder
frame
front
girl
group
happy
hispanic
learning
lock
male
mixed
mk2
model
models
multi
occupation
people
plastic
primary
professional
pupil
pupils
race
rate
school
shot
sitting
six
smiling
student
studying
teacher
teaching
together
toys
twenties
using
woman
women
working
years