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英文關鍵字
carbondioxide
carbonfootprint
colorimage
concept
danger
day
earth
environment
environmentalissues
footprint
globe
illustration
illustrationandpainting
nobody
outdoors
risk
threat
vertical
color
colour
daylight
daytime
drawing
endangering
exterior
footstep
graphic
graphicart
graphicdesign
hazard
hazardous
jeopardizing
jeopardy
nopeople
orb
outdoor
outside
perilous
picture
planet
risk-taking
sphere
treacherous
visualart
world