英文關鍵字
coast
garbage
volunteer
ocean
ecology
bag
environment
pollution
shore
problem
disaster
day
help
clean
glove
water
legs
feet
protection
nature
beach
waste
trash
concept
global
plastic
landscape
sunny
world
background
dirty
tide
ecological
marine
earth
surf
person
plastics
dump
contamination
sea
waves
coastline
rubbish
volunteering
conservation