英文關鍵字
black
brown
brownhaired
class
classmate
classroom
closeup
contact
device
digital
educate
education
female
fingers
gadget
girl
golden
grade
hair
hands
hold
holding
indoor
indoors
knowledge
learning
lifestyle
messaging
mobile
one
portative
problem
pupil
school
screen
scroll
sitting
smartphone
solve
student
studying
suit
table
text
texting
type
typing
watching