英文關鍵字
alien
aliens
cave
creature
egg
eggs
fiction
future
gas
goo
green
gross
halloween
horror
man
mars
martian
mist
misty
monster
monsters
mutant
mutate
mutates
mutation
nasty
nest
nuclear
planet
radiated
radiation
sack
scary
science
scifi
slime
slimy
smoke
space
spiky
star
trek
ufo
virus
wars