英文關鍵字
10
11
20s
boy
break
caucasian
child
children
class
classroom
close
diet
down
eating
education
elementary
enjoyment
female
food
friends
girl
happy
healthy
high
indoors
lock
lunch
lunchbox
male
mixed
old
packed
people
person
primary
pupil
race
school
schoolchildren
seven
sitting
smiling
student
teacher
time
together
twenties
up
woman
women
year