英文關鍵字
adult
alternative
auto
automobile
bio
boy
can
car
colza
diesel
eco
ecological
ecology
economy
energy
engine
ethanol
filling
finance
fuel
fueling
full
gas
gasoline
green
guy
hand
holding
jerrican
liquid
man
medium
octane
oil
organic
person
petrol
pollution
power
rape
rapeseed
refill
refueling
renewable
stop
sunflower
tank
transport
vegetable
vehicle