英文關鍵字
activist
adult
bag
bottle
care
cheerful
community
day
discussing
eco
ecology
environment
family
female
friends
garbage
grass
green
group
happy
human
lifestyle
male
man
natural
nature
outdoors
package
park
people
plastic
public
recycle
recycling
rubbish
sitting
smiling
summer
talking
team
teenager
together
trash
uniform
voluntary
volunteer
waste
woman
work
young