英文關鍵字
activity
adult
age
babies
background
beauty
body
building
business
cheerful
child
childhood
children
classroom
clothing
concepts
discovery
earth
education
elementary
ethnicity
eyes
female
geography
girl
girls
globe
grader
hair
happiness
head
horizontal
human
ideas
innocence
intelligence
learning
lifestyle
little
looking
man
map
moving
one
people
person
physical
planet
preadolescent
school
smile
smiling
student
unity
wisdom
world
young