英文關鍵字
air
are
atmosphere
auto
automobile
beef
blowing
car
carbon
co2
combustion
congestion
consumption
damage
danger
detail
dioxide
dirty
eco
ecology
emissions
engine
environment
exhaust
fried
fuel
fumes
garnish
gas
gasoline
gray
hot
industry
juicy
meat
mechanics
muffler
oil
oxide
pan
pipe
poison
pollution
power
ready
road
sausages
smog
smoke
speed
starting
steam
technology
thick
toxic
traffic
transport
vehicle
waste
wheel
when
white