英文關鍵字
adolescent
book
cell
class
classroom
college
communicating
communication
connection
copybook
curve
decide
digital
educate
education
electronic
female
fingers
girl
hands
holding
learning
lesson
lifestyle
mobile
pen
person
phone
pupil
read
room
school
schoolgirl
scroll
secondary
smartphone
solve
student
study
studying
table
teenager
textbook
texting
young
youth