英文關鍵字
agricultural
agriculture
approval
arm
beach
car
clean
coast
duty
engine
farming
field
food
fruit
garbage
harvest
harvesting
job
litter
nature
people
person
plant
rake
resort
rubbish
rural
sea
seaside
season
seaweed
service
shore
stream
summer
sweep
technology
tractor
trailer
tree
tropical
tropics
truck
vehicle
water
weed
wheat
work
worker
wrack