英文關鍵字
abstract
aqua
auto
automobile
automotive
background
blue
bottle
bubble
canister
car
clean
closeup
diesel
diet
energy
engine
fat
fill
flow
fluid
food
fuel
gas
gasoline
golden
healthy
industry
ingredient
isolated
liquid
lube
lubricant
lubrication
machine
maintenance
motor
natural
oil
organic
petrol
pour
pouring
pump
spill
station
synthetic
transportation
vehicle
white
world
yellow