英文關鍵字
adolescent
book
books
cell
cells
class
college
decide
deciding
desk
educate
education
female
fingers
girl
girls
grade
hands
holding
learn
learning
lesson
mobile
notebook
paper
pen
phone
primary
process
pupil
room
school
schoolgirl
serious
smartphone
solve
solving
study
studying
table
task
teenager
textbook
thinking
two
view
write
writing
young