英文關鍵字
pollution
earth
plastic
problem
save
ecology
stop
recycling
protection
global
environmental
eco
conservation
warning
destruction
climate
change
cardboard
biology
anger
enjoyment
education
negative
occupation
package
placard
planet
globe
rescue
standing
volunteer
container
ecosystem
ignore
melting
heap
protest
toxic
copy
space
one
person
damage
message
people
environment
work
health
woman