英文關鍵字
agriculture
agronomy
analyze
biologist
business
consumption
countryside
cultivated
development
electric
engineer
environment
examine
farm
farmer
farming
field
harvest
hat
helmet
high
inspector
kick
line
male
man
modern
nature
organic
person
plant
planter
power
production
protection
research
researcher
rural
science
scientist
scooter
specialist
summer
sunflower
sunflowers
technician
technology
test
voltage
worker
young