英文關鍵字
auto
automotive
background
big
business
car
clean
complexity
dealership
diesel
driver
engine
engineering
equipment
fuel
gear
industry
innovation
ladder
machine
manufacturing
metal
metallic
modern
part
pickup
power
race
rig
road
safety
semi
shiny
side
stair
stairs
steel
step
steps
technology
transport
transportation
truck
trucking
vehicle
wheel