英文關鍵字
adolescence
authentic
bibliophile
books
boy
bunch
caucasian
cell
childhood
children
classroom
culture
cute
desk
education
expertise
faces
heap
homework
honest
information
intelligence
internet
learning
literature
male
mobil
mobile
occupation
person
phone
picture
reading
really
school
schoolboy
science
stack
student
study
studying
teaching
teenager
textbook
wisdom
world
young
youth