英文關鍵字
activist
activity
adult
bag
beach
bottle
caucasian
child
coast
earth
ecology
environment
environmental
friends
garbage
girl
green
group
happy
holiday
life
lifestyle
man
nature
organization
outdoor
package
people
person
plastic
pollution
recycle
sand
save
sea
smiling
social
summer
sun
talk
talking
team
teamwork
together
trash
volunteer
volunteering
waste
woman
young