英文關鍵字
agricultural
agriculture
big
chemical
clearance
country
countryside
crop
environment
equipment
farm
farmer
farming
fertilize
fertilizer
field
green
high
industry
insecticide
land
landscape
machine
machinery
nature
north
person
pesticide
pesticides
prairie
red
rural
safety
season
spray
sprayer
spraying
tall
tank
tire
toxic
tractor
tree
walker
water
weed
work
worker
working