英文關鍵字
arms
boy
caucasian
child
class
classroom
clever
closeup
crossed
cute
desk
education
elementary
empty
exam
face
human
kid
knowledge
learn
lesson
little
looking
male
one
people
person
portrait
primary
pupil
school
schoolboy
schoolchild
schoolchildren
serious
simple
small
stands
student
study
table
teaching
teenager
test
tie
uniform
vest
white
whistles