英文關鍵字
agriculture
animal
arid
barley
bio
blowing
camera
cereal
change
climate
corn
day
desert
disaster
drain
dry
drying
dryness
earth
ecology
environment
equipment
erosion
extreme
farm
farmland
field
global
green
grow
harvesting
heat
hot
infertile
invisible
land
landscape
light
measurement
nature
organic
planet
plant
plants
radiation
rays
ripening
scanning
scenery
seed
shinning
stem
straw
summer
sunny
terrain
thermal
thermo
ultra
unripe
view
violet
warm
warming
wasteland
weather
wheat
wind
young