英文關鍵字
cold
tree
season
searching
feed
snowflake
snow
winetr
food
outdoor
fur
simply
wild
pig
eurasian
swine
pine
cone
nuts
eating
eat
nut
forest
boreal
southern
russia
hog
frost
frozen
teeth
tusk
sniff
nature
mammal
sus
scrofa
boar
walking
animal
large
europe
wildlife
winter
outdoors
northeast
china
animals
head