英文關鍵字
child
book
education
library
literature
international
kid
background
celebrate
learn
read
school
literacy
celebration
childhood
design
day
event
poster
study
world
happy
april
concept
girl
date
horizontal
reading
student
studying
textbook
university
person
cartoon
little
banner
cute
holiday
vector
bookstore
earth
global
knowledge
learning
lesson
social
media
stack
story