英文關鍵字
alaska
alaskan
america
animal
arctos
area
background
bear
big
brown
clean
conservation
danger
dangerous
eco
ecology
ecosystem
environment
environmental
fish
fishing
fresh
freshwater
fur
grizzly
hunting
katmai
mammal
national
native
natural
nature
outdoor
park
peninsula
predator
reserve
river
salmon
sockeye
tourism
travel
usa
water
wild
wilderness
wildlife