英文關鍵字
adult
arm
auto
automobile
car
cleaning
country
development
dirt
dirty
earth
employment
engine
filthy
finger
garage
hand
hard
industry
job
laborer
maintain
maintenance
male
man
mechanic
motor
person
profession
repair
repairing
repairman
safety
service
show
station
technique
transport
unhygienic
vehicle
wash
work
worker
working
workshop