英文關鍵字
hopeless
girl
smoke
cloud
ecology
problem
environmental
disaster
helpless
sad
disappearing
white
isolated
light
gray
air
pollution
toxic
smog
disturbed
scared
allergy
asthma
unhappy
gas
danger
health
chemical
harmful
emission
exhaust
fume
industrial
poisonous
spreading
waste
caucasian
people
person
adult
female
woman