機器
aerosol
agriculture
biology
bug
chemical
control
countryside
cultivated
destroy
device
epidemic
equipment
exterminator
fertilizer
garden
gardener
gardening
green
health
home
illness
insect
insecticide
job
killed
malaria
mosquito
nature
parasite
pest
pesticide
plant
plants
poisonous
protect
protection
season
sickness
spray
sprayer
summer
tool
toxic
trunk
virus
weed
weedkiller
work
worker