機器
agriculture
asian
blue
clear
cold
connect
countryside
drought
earth
engine
environment
equipment
farm
farmer
farming
farmland
field
flew
flow
flowing
fresh
freshness
garden
industrial
industry
modified
motor
natural
nature
old
outside
paddy
pipe
plantation
pump
reservoir
rice
rural
sewage
summer
supply
system
technology
tropical
tube
utility
wash
water
wet