英文關鍵字
american
art
boy
child
children
cross
crossing
danger
education
female
girl
kid
kids
little
people
person
road
safe
safety
sign
stop
street
student
symbol
traffic
transport
walk
walking
white
winter
young
zebra
英文關鍵字
american
art
boy
child
children
cross
crossing
danger
education
female
girl
kid
kids
little
people
person
road
safe
safety
sign
stop
street
student
symbol
traffic
transport
walk
walking
white
winter
young
zebra