英文關鍵字
asphalt
background
blurred
car
child
city
clean
country
cross
crossing
crosswalk
day
empty
gray
hand
highway
hour
kid
line
material
men
parent
path
pattern
pedestrian
people
person
road
row
safety
shopping
sidewalk
sign
silhouette
street
strip
striped
symbol
texture
town
traffic
transportation
urban
walk
walkway
warning
way
white
zebra