英文關鍵字
agriculture
animal
animals
baby
barn
boar
breast
brown
child
cute
domestic
eating
eye
family
farm
feeding
female
food
grass
group
growth
hay
hungry
industry
life
livestock
lying
mammal
mammals
mammary
meal
milk
mother
nature
new
outdoors
pets
pig
piglet
pink
small
snout
sow
sucking
suckling
tail
travel
wild
young