英文關鍵字
agriculture
air
background
bad
biological
breathe
brunette
call
care
caucasian
concept
conservation
countryside
day
disaster
earth
eco
ecological
ecology
emblem
environment
environmental
female
field
fresh
garbage
girl
global
grass
green
happy
holding
holds
natural
nature
outdoors
overalls
paper
peace
people
person
planet
plant
pollution
protection
protective
safe
save
sky
standing
suit
summer
sunset
survival
symbol
while
woman
world
yellow