英文關鍵字
aerial
amount
bird
birds
cleaning
collecting
collector
crows
debris
depressive
dirt
dirty
disposal
drone
dump
dustbin
dustman
ecological
ecology
environment
establishing
field
fill
filth
flight
flock
fly
flying
food
footage
garbage
gull
household
huge
industrial
industry
junk
junkyard
land
landfill
litter
pollution
recycle
recycling
refuse
ukraine
vicinity
video
waste