英文關鍵字
travelator
moving
motion
indoors
corridor
long
window
speed
transportation
sidewalk
inside
action
transport
glasses
activity
equipment
view
light
gray
background
line
blue
subway
automatic
urban
row
day
英文關鍵字
travelator
moving
motion
indoors
corridor
long
window
speed
transportation
sidewalk
inside
action
transport
glasses
activity
equipment
view
light
gray
background
line
blue
subway
automatic
urban
row
day