英文關鍵字
bad
cityscape
color
day
ecology
environment
environmental
garbage
horrible
nobody
people
polluted
pollution
real
river
summer
surface
time
waste
water
wind
windy
英文關鍵字
bad
cityscape
color
day
ecology
environment
environmental
garbage
horrible
nobody
people
polluted
pollution
real
river
summer
surface
time
waste
water
wind
windy