英文關鍵字
3g
4g
adorable
always
back
background
backpack
boy
break
call
care
cell
child
childhood
children
city
cute
discuss
education
formal
girl
glasses
grade
happy
kid
kids
knowledge
little
mark
mate
mobile
one
outdoors
person
phone
playing
pupil
school
schoolboy
schoolgirl
small
smart
smartphone
student
technology
to
touch
uniform
use