機器
agricultural
agriculture
animal
beautiful
blue
china
cloud
crop
electric
energy
environment
equipment
farm
farming
farmland
field
food
free
green
horizontal
horse
irrigation
landscape
light
mountain
nature
outdoors
plant
power
road
rural
sky
space
spray
sprinkler
summer
sun
sunlight
sunny
sunset
system
tagong
technology
transportation
travel
water
wild
wire
yellow