英文關鍵字
agriculture
animals
barn
boar
clean
closeup
country
countryside
created
curiosity
cute
dirt
dirty
domestic
farm
food
garbage
group
growth
head
hungry
husbandry
industry
livestock
looking
mammals
meat
nose
organic
outdoors
pets
pig
pigfarm
piglet
pigpen
pigstry
pink
population
pork
rural
selective
smell
snout
straw
tail
unhygienic
veterinarian