英文關鍵字
armed
attack
base
bay
black
clouds
cold
combat
day
defense
diesel
fighter
flags
force
guard
harbor
haven
ice
marina
military
moored
moorings
naval
navy
pier
power
protective
red
russian
sea
ship
shore
sky
snow
soviet
star
sub
submarine
submersible
war
warship
weapon
wind
winter
world