英文關鍵字
action
air
center
chemicals
city
defense
effects
environment
flying
from
gull
humans
impact
industrial
journey
landfill
metal
nearby
object
plant
plants
pollutants
sacred
sea
seagulls
the
toxic
water
works
英文關鍵字
action
air
center
chemicals
city
defense
effects
environment
flying
from
gull
humans
impact
industrial
journey
landfill
metal
nearby
object
plant
plants
pollutants
sacred
sea
seagulls
the
toxic
water
works