英文關鍵字
altruism
awareness
bag
beach
bottle
care
clean
cleaning
cleans
cleanup
closeup
coast
coastline
collect
community
contamination
dirty
ecology
environment
environmental
female
garbage
global
gloves
hand
legs
outdoor
outdoors
people
person
picking
plastic
pollution
preservation
problem
protection
recycling
rubbish
sand
sea
shore
tidying
trash
volunteer
volunteering
waste
water
woman
work
young