英文關鍵字
back
beautiful
boy
chalkboard
cheerful
child
childhood
children
class
classmates
classroom
concept
cute
education
elementary
female
girl
girls
grade
group
hands
happy
indoors
knowledge
learning
lesson
little
many
people
primary
pupil
pupils
raising
ready
school
schoolboys
schoolchildren
schoolgirls
sitting
small
student
students
study
teacher
teaching
together
woman
writing
young
youth