英文關鍵字
smart
girl
writing
elementary
school
training
closeup
busy
diligent
little
exercise
solving
math
task
workplace
vertical
video
kid
education
home
study
working
desk
learning
primary
pupil
homework
student
class
lesson
schoolgirl
clever
course
discipline
handwriting
skills
knowledge
shot
interior
indoors
caucasian
people
person
female
young
small
child