英文關鍵字
adolescent
ballpoint
book
boy
chart
class
classmate
classroom
college
copybook
curve
desk
educate
education
fingers
graph
group
hands
holding
indoors
lesson
lifestyle
male
notebook
paper
pen
person
primary
process
pupil
room
school
schoolboy
schoolchild
schoolchildren
secondary
serious
sitting
student
study
studying
table
teenager
thinking
write
writing
youth