英文關鍵字
abstract
animation
background
blue
care
celebration
concept
conceptual
conservation
day
design
earth
eco
ecology
electricity
element
energy
environment
environmental
global
globe
graphic
green
hour
idea
illustration
inscription
international
life
light
map
modern
motion
nature
night
off
planet
power
protect
protection
save
science
sign
space
symbol
technology
text
time
turn
world