英文關鍵字
50s
60s
70s
90s
alpha
ancient
antique
background
blank
board
chroma
class
classroom
closeup
empty
fashioned
green
greenscreen
isolated
key
keying
matte
mock
object
obsolete
old
portable
retro
room
school
screen
sepia
set
style
television
tone
video
vintage
white