エコと電球のイメージ。節電や省エネ対策を表す。
Schlüsselwörter
eco,
brownout,
bulb,
power,
electricity,
energy,
environmental issue,
ecological,
renewable energy,
ecology,
green,
nature,
plant,
leaf,
foliage,
hike,
life,
home,
green,
copy space,
blank space,
light,
clean,
rise,
future,
character,
text
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