英文關鍵字
architecture
beach
big
bottle
building
bulldozer
car
caucasian
children
city
class
color
cute
dig
europe
gravel
hand
heavy
holding
indoors
institute
isolated
joy
kopernik
lab
landmark
learning
little
loader
male
medicine
mind
museum
one
people
plastic
preschool
road
schoolboy
small
studying
test
toddler
tourist
toy
transportation
travel
tube
visitors
yellow