英文關鍵字
afternoon
alert
america
animal
another
black
brown
burrow
curious
cute
cynomys
dog
dogs
eat
eating
environment
feeding
funny
fur
furry
grass
grassland
green
ground
habitat
hole
isolated
joins
little
looks
ludovicianus
mammal
natural
nature
north
one
outdoor
outdoors
pack
pair
prairie
rodent
sciuridae
small
standing
stands
staring
stops
summer
usa
watchful
while
wild
wilderness
wildlife