英文關鍵字
air
all
are
avoid
bench
box
caused
city
cleaner
cleaning
compost
composting
dark
deforestation
earth
ecological
factory
few
front
girl
global
going
green
grownup
her
him
his
holding
home
house
hybrid
industrial
laptop
man
management
mask
men
mill
natural
new
night
panel
panels
people
planting
pollution
recycle
recycling
renovation
road
saplings
shown
sitting
solar
standing
stormy
they
tool
tools
tree
types
umbrella
unit
various
vehicle
walking
warming
waste
water
wearing
whitewash
wildlife
wind
woman
women
working