英文關鍵字
agricultural
agriculture
animal
barn
boar
breeding
cattle
curious
cute
domestic
ears
farm
farming
feeding
food
group
happy
hog
husbandry
industry
little
livestock
look
mammal
meal
meat
nature
nose
pen
pig
piggy
piglet
pigpen
pigstry
pink
pork
rural
sheepfold
small
snout
sow
stare
straw
swine
vaccine
vet
veterinarian
white
young