英文關鍵字
bell
boy
break
caucasian
child
childhood
classmate
classroom
discipline
education
elementary
exit
face
female
fun
girl
glad
happiness
happy
indoors
joy
kid
laugh
laughing
lesson
lifestyle
male
notebook
people
person
positive
pupil
ring
ringing
school
schoolboy
schoolchildren
schoolgirl
schoolmate
slowmo
smile
smiling
student
table
teaching
two