英文關鍵字
animal
bear
bears
behavior
brown
burrow
bush
captive
danger
food
forest
free
green
grizzly
ground
habitat
hibernate
huge
hungry
hunt
imposing
large
leisure
link
lonely
look
meeting
mountains
muzzle
nature
power
predator
protect
relax
rest
single
solitaire
spring
strong
survive
threat
tong
wait
wild
wildlife
wood