英文關鍵字
air
aircraft
airline
airliner
airplane
airport
automobile
aviation
car
chassis
check
closeup
colleague
crew
departure
design
engine
engineer
flight
fly
gear
industry
inspection
jet
journey
landing
machine
man
mechanic
metal
passenger
plane
power
repair
safety
serene
service
sky
steel
technology
tire
transport
transportation
travel
undercarriage
vehicle
wheel
work
worker