英文關鍵字
activism
activist
activity
adult
bag
beach
bottle
caucasian
children
community
earth
eco
ecology
environment
environmental
female
friends
friendship
girl
green
greeting
group
hand
help
life
lifestyle
man
nature
organization
outdoor
package
people
person
plastic
problems
recycle
recycling
save
smiling
social
summer
talking
team
together
trash
volunteer
volunteering
waste
woman
young