英文關鍵字
book
child
childhood
closeup
computer
concentrated
desk
drawing
education
exercise
girl
glasses
home
homework
indoor
kid
laptop
learn
learning
little
math
person
prepare
preschool
preschooler
quarantine
remote
room
schoolchild
schoolgirl
schooling
schoolkid
slowmotion
student
study
textbook
virus
writing