英文關鍵字
1080p
1920x1080
air
bio
biological
breath
building
business
change
chimney
climate
cloud
coal
dioxide
discharge
ecology
electric
electricity
energy
environment
factory
filth
fuel
fumes
gas
generate
generation
global
health
industrial
industry
lapse
morning
nature
pipe
plant
pollute
pollution
power
powerful
production
sky
smog
smoke
smokestacks
steam
timelapse
tower
warming