英文關鍵字
animation
background
bright
bulb
cartoon
concept
creative
creativity
efficient
electric
electrical
electricity
element
energy
equipment
filament
glass
icon
illuminated
illumination
illustration
imagination
innovation
inspiration
invention
isolated
light
lightbulb
luminosity
motion
object
power
progress
resource
science
shine
shining
sign
square
supply
symbol
technology
theory
thinking
thought
transparent
watt
white