英文關鍵字
adult
authentic
auto
automobile
builder
bus
car
caucasian
confident
construction
control
drive
driver
employee
engineer
foreman
hand
helmet
highway
human
indoor
industry
inside
interior
job
male
man
men
minivan
move
people
person
professional
road
service
speed
steering
technician
traffic
transport
trip
vehicle
wheel
worker