英文關鍵字
agricultural
america
animal
barn
big
boar
brown
countryside
dangerous
dark
domestic
ears
family
farm
farmer
farming
fence
forest
fur
grey
ground
happy
hog
hunted
interested
large
livestock
looking
male
mammal
moving
nature
outdoors
pig
piggy
portrait
predator
razorback
scrofa
sitting
snout
towards
watching
wild
wilderness
wildlife
zoo