英文關鍵字
abandoned
agriculture
black
burning
canal
cane
carbon
center
dioxide
disaster
dry
ecology
field
fire
grass
gray
house
irrigation
pollution
rice
smoke
steam
straw
tires
wheat
英文關鍵字
abandoned
agriculture
black
burning
canal
cane
carbon
center
dioxide
disaster
dry
ecology
field
fire
grass
gray
house
irrigation
pollution
rice
smoke
steam
straw
tires
wheat