英文關鍵字
adult
alpha
background
caucasian
channel
chroma
closeup
cut
finger
forefinger
foreground
gestures
green
hand
head
hold
index
keyed
looking
male
man
men
model
nods
pointer
push
screen
scroll
serious
shakes
sideways
studio
swaying
swipe
tap
touch
transparent
tshirt
yes