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