英文關鍵字
garbege
recycling
factory
line
symbol
outline
waste
industry
trash
transportation
landfill
linear
contour
lined
industrial
temperature
dumpster
burn
contamination
container
ecology
foul
hazardous
junk
pile
plastic
pollution
recycle
rubbish
dump
environmental
processing
reuse
monochrome
icon
motion
graphic
animation
pictogram
hd
animated
item
sign
black