英文關鍵字
activity
adult
airport
back
building
business
businessman
city
commuter
construction
contemporary
corridor
doorway
entrance
floor
footpath
forward
geometric
glass
human
indoors
male
man
motion
move
moving
narrow
pedestrian
people
person
speed
station
structure
subway
technology
travel
travelling
tunnel
urban
walking
walks
walkway
walls
window